Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsInterface ICsInterface IC - I/O extensions POR I²C, SMBus 400 kHz WQFN 24

ZQSPACKAGE

(TOP VIEW)

P00

ADDR

2 17

P01

P17

P02 P16

P03

P15

P04

P14

P05

P13

P06

RESET

P07

CCI

GND

INT

P10

CCP

P11

SDA

P12

SCL

RTWPACKAGE

(TOP VIEW)

INT

CCI

RESET

P00

P01

P02

P03

GND

CCP

SDA

SCL

ADDR

P17

P16

P15

P14

PWPACKAGE

(TOP VIEW)

P04

P05

P06

P07

P13

P12

P11

P10

Exposed

Center

Pad

Theexposedcenterpad,ifused,mustbeconnected

onlyasasecondaryGNDormustbeleftelectricallyopen.

TCA6416A

www.ti.com

SCPS194A –MAY 2009–REVISED NOVEMBER 2009

LOW-VOLTAGE 16-BIT I

C AND SMBus I/O EXPANDER

WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

Check for Samples: TCA6416A

FEATURES

• Operating Power-Supply Voltage Range of • 5-V Tolerant I/O Ports

1.65 V to 5.5 V

• Active-Low Reset Input (RESET)

• Allows Bidirectional Voltage-Level Translation

• Open-Drain Active-Low Interrupt Output (INT)

and GPIO Expansion Between:

• 400-kHz Fast I

C Bus

– 1.8-V SCL/SDA and

• Input/Output Configuration Register

1.8-V, 2.5-V, 3.3-V, or 5-V P Port

• Polarity Inversion Register

– 2.5-V SCL/SDA and

• Internal Power-On Reset

1.8-V, 2.5-V, 3.3-V, or 5-V P Port

• Power Up With All Channels Configured as

– 3.3-V SCL/SDA and

Inputs

1.8-V, 2.5-V, 3.3-V, or 5-V P Port

• No Glitch On Power Up

– 5-V SCL/SDA and

• Noise Filter on SCL/SDA Inputs

1.8-V, 2.5-V, 3.3-V, or 5-V P Port

• Latched Outputs With High-Current Drive

• I

C to Parallel Port Expander

Maximum Capability for Directly Driving LEDs

• Low Standby Current Consumption of 3 μA

• Latch-Up Performance Exceeds 100 mA Per

• Schmitt-Trigger Action Allows Slow Input

JESD 78, Class II

Transition and Better Switching Noise

• ESD Protection Exceeds JESD 22

Immunity at the SCL and SDA Inputs

– 2000-V Human-Body Model (A114-A)

– V

hys

= 0.18 V Typ at 1.8 V

– 200-V Machine Model (A115-A)

– V

hys

= 0.25 V Typ at 2.5 V

– 1000-V Charged-Device Model (C101)

– V

hys

= 0.33 V Typ at 3.3 V

– V

hys

= 0.5 V Typ at 5 V

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (35 pages)

PAGE 1
TCA6416A www.ti.
PAGE 2
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com DESCRIPTION/ORDERING INFORMATION This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)]. The major benefit of this device is its wide VCC range. It can operate from 1.65 V to 5.5 V on the P-port side and on the SDA/SCL side.
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TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 Table 2. TERMINAL FUNCTIONS TERMINAL NO. DESCRIPTION TSSOP (PW) QFN (RTW) BGA (ZQS) NAME 1 22 A3 INT Interrupt output. Connect to VCCI or VCCP through a pullup resistor. 2 23 B3 VCCI Supply voltage of I2C bus. Connect directly to the VCC of the external I2C master. Provides voltage-level translation. 3 24 A2 RESET 4 1 A1 P00 P-port input/output (push-pull design structure). At power on, P00 is configured as an input.
PAGE 4
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com Voltage Translation Table 3 shows how to set up VCC levels for the necessary voltage translation between the I2C bus and the TCA6416A. Table 3. Voltage Translation VCCI (SDA AND SCL OF I2C MASTER) (V) VCCP (P PORT) (V) 1.8 1.8 1.8 2.5 1.8 3.3 1.8 5 2.5 1.8 2.5 2.5 2.5 3.3 2.5 5 3.3 1.8 3.3 2.5 3.3 3.3 3.3 5 5 1.8 5 2.5 5 3.3 5 5 Figure 1.
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TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 Figure 2.
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TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com Any number of data bytes can be transferred from the transmitter to receiver between the Start and the Stop conditions. Each byte of eight bits is followed by one ACK bit. The transmitter must release the SDA line before the receiver can send an ACK bit. The device that acknowledges must pull down the SDA line during the ACK clock pulse, so that the SDA line is stable low during the high pulse of the ACK-related clock period (see Figure 5).
PAGE 7
TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 Table 4. Interface Definition BIT BYTE 7 (MSB) 2 I C slave address I/O data bus 6 5 4 3 2 1 0 (LSB) L H L L L L ADDR R/W P07 P06 P05 P04 P03 P02 P01 P00 P17 P16 P15 P14 P13 P12 P11 P10 Device Address The address of the TCA6416A is shown in Figure 6. Slave Address 0 1 0 0 Fixed 0 AD 0 DR R/W Programmable Figure 6. TCA6416A Address Table 5.
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TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com Register Descriptions The Input Port registers (registers 0 and 1) reflect the incoming logic levels of the pins, regardless of whether the pin is defined as an input or an output by the Configuration register. They act only on read operation. Writes to these registers have no effect. The default value (X) is determined by the externally applied logic level.
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TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 Reset Input (RESET) The RESET input can be asserted to initialize the system while keeping the VCCP at its operating level. A reset can be accomplished by holding the RESET pin low for a minimum of tW. The TCA6416A registers and I2C/SMBus state machine are changed to their default state once RESET is low (0). When RESET is high (1), the I/O levels at the P port can be changed externally or through the master.
PAGE 10
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 SCL 1 2 3 5 4 6 8 7 9 1 2 www.ti.com 3 Slave Address SDA 0 S 0 1 0 0 4 5 6 8 7 0 AD DR 0 1 A 0 0 0 0 0 3 2 5 4 6 8 7 9 1 1 1/0 0/1 Data 0 A MSB 3 2 Data to Register R/W Acknowledge From Slave Start Condition 9 Command Byte 4 5 Data to Register Data1 LSB A MSB Acknowledge From Slave LSB A P Acknowledge From Slave Figure 9.
PAGE 11
TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 1 SCL 2 3 4 5 6 7 R 9 Data From Port Slave Address S 0 SDA 1 Start Condition 0 0 0 AD 0 DR 1 R/W Data From Port Data 1 A Data 4 A NACK From Master ACK From Master ACK From Slave NA P Stop Condition Read From Port Data Into Port Data 2 tph Data 3 Data 4 Data 5 tps INT is cleared by Read from Port INT tiv Stop not needed to clear INT tir A. Transfer of data can be stopped at any time by a Stop condition.
PAGE 12
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCCI Supply voltage range –0.5 6.5 V VCCP Supply voltage range –0.5 6.5 V VI Input voltage range (2) –0.5 6.5 V VO Output voltage range (2) –0.5 6.
PAGE 13
TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 ELECTRICAL CHARACTERISTICS over recommended operating free-air temperature range, VCCI = 1.65 V to 5.5 V (unless otherwise noted) PARAMETER TEST CONDITIONS VCCP MIN –1.2 VIK Input diode clamp II = –18 mA voltage 1.65 V to 5.5 V VPOR Power-on reset voltage 1.65 V to 5.5 V VI = VCCP or GND, IO = 0 IOH = –8 mA P-port high-level output voltage VOH IOH = –10 mA IOL = 8 mA P-port low-level output voltage VOL IOL = 10 mA TYP (1) 1.
PAGE 14
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com I2C INTERFACE TIMING REQUIREMENTS over recommended operating free-air temperature range (unless otherwise noted) (see Figure 12) STANDARD MODE I2C BUS MIN MAX 100 fscl I2C clock frequency 0 tsch I2C clock high time 4 2 tscl I C clock low time tsp I2C spike time tsds I2C serial data setup time FAST MODE I2C BUS MAX 0 400 μs 1.3 0 50 0 250 50 100 0 kHz μs 0.6 4.
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TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 TYPICAL CHARACTERISTICS TA = 25°C (unless otherwise noted) SUPPLY CURRENT vs TEMPERATURE STANDBY SUPPLY CURRENT vs TEMPERATURE 22 VCC = 5 V 14 12 10 VCC = 3.3 V 8 VCC = 2.5 V 6 4 VCC = 1.8 V 2 VCC = 1.65 V -15 10 35 VCC = 5.5 V 20 1600 VCC = 5 V 18 1400 1200 600 400 60 0 –40 85 35 Sink Current, ISINK (mA) 20 TA = 25°C 15 TA = 85°C 5 0.4 0.5 0.
PAGE 16
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com TYPICAL CHARACTERISTICS (continued) TA = 25°C (unless otherwise noted) I/O LOW VOLTAGE vs TEMPERATURE I/O SOURCE CURRENT vs OUTPUT HIGH VOLTAGE 25 VCC = 1.8 V, ISINK = 10 mA 200 150 VCC = 5 V, ISINK = 10 mA 100 VCC = 1.8 V, ISINK = 1 mA VCC = 5 V, ISINK = 1 mA 0 -40 -15 10 35 60 15 TA = 25°C 10 TA = 85°C 5 0 85 0.0 Temperature, TA (°C) TA = –40°C 30 25 TA = 25°C 15 TA = 85°C 10 5 0 0.1 0.2 0.2 0.3 0.4 0.5 0.3 0.4 0.
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TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 PARAMETER MEASUREMENT INFORMATION VCCI RL = 1 kW SDA DUT CL = 50 pF (see Note A) SDA LOAD CONFIGURATION Two Bytes for READ Input Port Register (see Figure 9) Address Bit 7 (MSB) Stop Start Condition Condition (P) (S) tscl Address Bit 1 R/W Bit 0 (LSB) Data Bit 7 (MSB) ACK (A) Data Bit 0 (LSB) Stop Condition (P) tsch 0.7 ´ VCCI SCL 0.3 ´ VCCI ticr tsp ticf tbuf tvd tocf tvd tsts tsps SDA 0.7 ´ VCCI 0.
PAGE 18
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) VCCI RL = 4.7 kW INT DUT CL = 100 pF (see Note A) INTERRUPT LOAD CONFIGURATION ACK From Slave Start Condition 8 Bits (One Data Byte) From Port R/W Slave Address S 0 1 0 0 0 0 AD DR 1 A 1 2 3 4 5 6 7 8 A Data 1 ACK From Slave Data From Port A Data 2 1 P A tir tir B B INT tiv A tsps A Data Into Port Address Data 1 0.5 ´ VCCI INT SCL Data 2 0.
PAGE 19
TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 PARAMETER MEASUREMENT INFORMATION (continued) 500 W Pn DUT 2 ´ VCCP CL = 50 pF (see Note A) 500 W P-PORT LOAD CONFIGURATION SCL P0 A P3 0.7 ´ VCCP 0.3 ´ VCCI Slave ACK SDA tpv (see Note B) Pn Unstable Data Last Stable Bit WRITE MODE (R/W = 0) SCL 0.7 ´ VCCI P0 A tps P3 0.3 ´ VCCI tph Pn 0.5 ´ VCCP READ MODE (R/W = 1) A. CL includes probe and jig capacitance. B. tpv is measured from 0.
PAGE 20
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) VCCI RL = 1 kW 500 W Pn SDA DUT DUT CL = 50 pF (see Note A) SDA LOAD CONFIGURATION 2 ´ VCCP CL = 50 pF (see Note A) 500 W P-PORT LOAD CONFIGURATION Start SCL ACK or Read Cycle SDA 0.3 ´ VCCI tRESET VCCP/2 RESET tREC tREC tW VCCP/2 Pn tRESET A. CL includes probe and jig capacitance. B.
PAGE 21
TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 APPLICATION INFORMATION Figure 16 shows an application in which the TCA6416A can be used. VCCI VCCP 10 kW (´ 7) VCCI (1.8 V) 10 kW VCC 10 kW 22 SCL Master Controller SDA 23 1 INT GND 2 10 kW 10 kW 3 RESET 24 VCCI VCCP P00 SCL ALARM (see Note E) Subsystem 1 (e.g.
PAGE 22
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com Minimizing ICC When I/Os Control LEDs When the I/Os are used to control LEDs, normally they are connected to VCC through a resistor as shown in Figure 16. The LED acts as a diode so, when the LED is off, the I/O VIN is about 1.2 V less than VCC. The ΔICC parameter in Electrical Characteristics shows how ICC increases as VIN becomes lower than VCC.
PAGE 23
TCA6416A www.ti.com SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 VCC Ramp-Up Ramp-Down VCC_TRR_VPOR50 VIN drops below POR levels Time Time to Re-Ramp VCC_FT VCC_RT Figure 20. VCC is Lowered Below the POR Threshold, Then Ramped Back Up to VCC Table 11 specifies the performance of the power-on reset feature for TCA6416A for both types of power-on reset. Table 11. RECOMMENDED SUPPLY SEQUENCING AND RAMP RATES (1) PARAMETER MAX UNIT tFT Fall rate See Figure 19 0.
PAGE 24
TCA6416A SCPS194A – MAY 2009 – REVISED NOVEMBER 2009 www.ti.com VCC VPOR VPORF Time POR Time Figure 22.
PAGE 25
PACKAGE OPTION ADDENDUM www.ti.
PAGE 26
PACKAGE OPTION ADDENDUM www.ti.com 20-May-2013 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
PAGE 27
PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TCA6416ARTWR WQFN RTW 24 3000 330.0 12.4 4.25 4.25 1.15 8.0 12.0 Q2 TCA6416AZQSR BGA MI CROSTA R JUNI OR ZQS 24 2500 330.0 12.4 3.3 3.3 1.6 8.0 12.
PAGE 28
PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TCA6416ARTWR WQFN RTW 24 3000 367.0 367.0 35.0 TCA6416AZQSR BGA MICROSTAR JUNIOR ZQS 24 2500 338.1 338.1 20.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.