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
Data Sheet 71M6531D/F-71M6532D/F FDS 6531/6532 005
102 Rev 2
5.4.9 Crystal Oscillator
Table 78: Crystal Oscillator Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
Maximum Output Power to Crystal
4
Crystal connected
1
μW
XIN to XOUT Capacitance
1
3
pF
Capacitance to GNDD
1
XIN
XOUT
RTCA_ADJ[6:0] = 0
5
5
pF
pF
5.4.10 LCD DAC
Table 79: LCD DAC Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
VLCD Voltage
V019.0LCD_DAC)059.01(3P3VV
LCD
−⋅−⋅=
1 ≤ LCD_DAC[2:0] ≤ 7
-10 +10 %
5.4.11 LCD Drivers
The information in Table 80 applies to all COM and SEG pins with LCD_DAC[2:0] = 000.
Table 80: LCD Driver Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
VLC2 Voltage
With respect to VLCD
1
-0.1
+0.1
V
VLC1 Voltage
†
,
⅓ bias
½ bias
½ bias, minimum output level
With respect to 2*VLC2/3
With respect to VLC2/2
-3
-3
+2
+2
1.0
% VLC2
% VLC2
V
VLC0 Voltage,
⅓ bias
With respect to VLC2/3
-4
+1
%
VLC1 Impedance
∆I
LOAD
=
100
µ
A
(Isink)
9
15
kΩ
∆I
LOAD
=
-100
µ
A
(Isource)
9
15
VLC0 Impedance
∆I
LOAD
=
100
µ
A
(Isink)
9
15
kΩ
∆ILOAD = -100 µA (Isource)
9
15
1
VLCD is V3P3SYS in MISSION mode and VBAT in BROWNOUT and LCD modes.
†
Specified as percentage of VLC2, the maximum LCD voltage.
5.4.12 Optical Interface
Table 81: Optical Interface Performance Specifications
Parameter
Condition
Min
Typ
Max
Unit
OPT_TX V
OH
(V3P3D-OPT_TX)
I
SOURCE
=1 mA
0.4
V
OPT_TX VOL
ISINK = 20 mA
0.7
V