Datasheet
Table Of Contents
- 1 Hardware Description
- 1.1 Hardware Overview
- 1.2 Analog Front End (AFE)
- 1.3 Digital Computation Engine (CE)
- 1.4 80515 MPU Core
- 1.4.1 Memory Organization and Addressing
- 1.4.2 Special Function Registers (SFRs)
- 1.4.3 Generic 80515 Special Function Registers
- 1.4.4 Special Function Registers (SFRs) Specific to the 71M6531D/F and 71M6532D/F
- 1.4.5 Instruction Set
- 1.4.6 UARTs
- 1.4.7 Timers and Counters
- 1.4.8 WD Timer (Software Watchdog Timer)
- 1.4.9 Interrupts
- 1.5 On-Chip Resources
- 1.5.1 Oscillator
- 1.5.2 Internal Clocks
- 1.5.3 Real-Time Clock (RTC)
- 1.5.4 Temperature Sensor
- 1.5.5 Physical Memory
- 1.5.6 Optical Interface
- 1.5.7 Digital I/O – 71M6531D/F
- 1.5.8 Digital I/O – 71M6532D/F
- 1.5.9 Digital IO – Common Characteristics for 71M6531D/F and 71M6532D/F
- 1.5.10 LCD Drivers – 71M6531D/F
- 1.5.11 LCD Drivers – 71M6532D/F
- 1.5.12 LCD Drivers – Common Characteristics for 71M6531D/F and 71M6532D/F
- 1.5.13 Battery Monitor
- 1.5.14 EEPROM Interface
- 1.5.15 SPI Slave Port
- 1.5.16 Hardware Watchdog Timer
- 1.5.17 Test Ports (TMUXOUT pin)
- 2 Functional Description
- 3 Application Information
- 3.1 Connection of Sensors
- 3.2 Connecting 5-V Devices
- 3.3 Temperature Measurement
- 3.4 Temperature Compensation
- 3.5 Connecting LCDs
- 3.6 Connecting I2C EEPROMs
- 3.7 Connecting Three-Wire EEPROMs
- 3.8 UART0 (TX/RX)
- 3.9 Optical Interface (UART1)
- 3.10 Connecting the V1 Pin
- 3.11 Connecting the Reset Pin
- 3.12 Connecting the Emulator Port Pins
- 3.13 Connecting a Battery
- 3.14 Flash Programming
- 3.15 MPU Firmware
- 3.16 Crystal Oscillator
- 3.17 Meter Calibration
- 4 Firmware Interface
- 4.1 I/O RAM and SFR Map – Functional Order
- 4.2 I/O RAM Description – Alphabetical Order
- 4.3 CE Interface Description
- 5 Electrical Specifications
- 5.1 Absolute Maximum Ratings
- 5.2 Recommended External Components
- 5.3 Recommended Operating Conditions
- 5.4 Performance Specifications
- 5.4.1 Input Logic Levels
- 5.4.2 Output Logic Levels
- 5.4.3 Power-Fault Comparator
- 5.4.4 Battery Monitor
- 5.4.5 Supply Current
- 5.4.6 V3P3D Switch
- 5.4.7 2.5 V Voltage Regulator
- 5.4.8 Low-Power Voltage Regulator
- 5.4.9 Crystal Oscillator
- 5.4.10 LCD DAC
- 5.4.11 LCD Drivers
- 5.4.12 Optical Interface
- 5.4.13 Temperature Sensor
- 5.4.14 VREF
- 5.4.15 ADC Converter, V3P3A Referenced
- 5.5 Timing Specifications
- 5.6 Typical Performance Data
- 5.7 71M6531D/F Package
- 5.8 71M6532D/F Package
- 5.9 Pin Descriptions
- 6 Ordering Information
- 7 Related Information
- 8 Contact Information
- Appendix A: Acronyms
- Appendix B: Revision History
FDS 6531/6532 005 Data Sheet 71M6531D/F-71M6532D/F
Rev 2 101
5.4.5 Supply Current
Table 74: Supply Current Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
V3P3SYS current (CE off)
Normal Operation,
V3P3A = V3P3SYS = 3.3 V
CKMPU = 614 kHz
No Flash Memory write
RTM_E=0, ECK_DIS=1,
ADC_E=1, ICE_E=0
4.2 6.35 mA
V3P3SYS current (CE on)
8.4 9.6 mA
V3P3A current
3.3 3.8 mA
VBAT current -400 +400 nA
V3P3SYS current,
Write Flash
Normal Operation as above, except
write Flash at maximum rate,
CE_E = 0, ADC_ E = 0
9.1 12 mA
VBAT current
VBAT=3.6V
BROWNOUT mode
71M6531D/F
71M6532D/F
LCD Mode
LCD DAC off
LCD DAC on
SLEEP Mode
52
82
11
21
0.7
250
250
40
46
1.5
µA
µA
µA
µA
µA
5.4.6 V3P3D Switch
Table 75: V3P3D Switch Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
On resistance – V3P3SYS to V3P3D
| I
V3P3D
| ≤ 1 mA
9
15
Ω
On resistance – VBAT to V3P3D
| I
V3P3D
| ≤ 1 mA
32
50
Ω
5.4.7 2.5 V Voltage Regulator
Table 76: 2.5 V Voltage Regulator Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
V2P5
Iload = 0
2.3
2.5
2.7
V
V2P5 load regulation
Iload = 0 mA to 5 mA
40
mV
Voltage overhead V3P3-V2P5
Iload = 5 mA, reduce V3P3
until V2P5 drops 200 mV
470 mV
PSSR
∆
V2P5/
∆
V3P3
RESET=0, iload=0 -2 +2 mV/V
5.4.8 Low-Power Voltage Regulator
Unless otherwise specified, V3P3SYS = V3P3A = 0, PB=GND (BROWNOUT).
Table 77: Low-Power Voltage Regulator Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
V2P5
I
LOAD
=
0
2.3
2.5
2.7
V
V2P5 load regulation
ILOAD = 0 mA to 1 mA
30
mV
VBAT voltage requirement
I
LOAD
=
1
mA, reduce VBAT
until REG_LP_OK = 0
3.0 V
PSRR ΔV2P5/ΔVBAT
I
LOAD
= 0
-50
50
mV/V