71M6541F Maxim, 71M6541F Datasheet - Page 9

• Manufacturer Part Number: 71M6541F
• Description: The 71M6541D/71M6541F/71M6541G/71M6542F/71M6542G are Teridian™ 4th-generation single-phase metering SoCs with a 5MHz 8051-compatible MPU core, low-power RTC with digital temperature compensation, flash memory, and LCD driver
• Manufacturer: Maxim

Rev 2
VARPULSE
SEGDIO51/
SEGDIO55
WPULSE/
OPT_RX/
OPT_TX/
TEST
XOUT
IAN
IBN
VA
IAP
IBP
VB*
XIN
RX
TX
* 71M6542F/G only
MODE
TEST
MUX
INTERFACE
OPTICAL
UART0
MUX CTRL
Oscillator
CLOCK GEN
PREAMP
32 KHz
POWER FAULT
MUX
and
DETECTION
VBIAS
CE CONTROL
4.9 MHz
CROSS
RTCLK (32KHz)
CK32
< 4.9MHz
< 4.9MHz
MUX_SYNC
CKCE
CKMPU
CK_4X
CKMPU_2x
WAKE
VBIAS
FAULTZ
VREF
VSTAT
Figure 1: IC Functional Block Diagram
STRT
32-bit Compute
RESET
VREF
(80515)
MPU
MCK
Engine
PLL
MPU_RSTZ
CE
V3P3A
4.9 MHZ
32KHz
VBIAS
CK32
INTERFACE
EEPROM
SDOUT
SDCK
SDIN
0x0000...0xFFFF
CKMPU_2x
RTM
WPULSE
VARPULSE
+
0x000...0x3FF
E_RXTX/SEG48
-
0x0000...0xFFFF
E_TCLK/SEG49
VREF
ADC
PROGRAM
DIV
AD CONVERTER
DATA
E_RST/SEG50
16
8
CKADC
8
PROG
∆Σ
32
MPU RAM
0x000...0x2FF
3/5 KB
CEDATA
EMULATOR
MEMORY
3
PORT
SHARE
CKFIR
V3P3A
71M6541D/F/G and 71M6542F/G Data Sheet
E_RXTX
E_TCLK
E_RST
0x0000...0x13FF
0x2000...0x20FF
8
VARPULSE
8
FIR
WPULSE
0x0000…
0xFFFF
MEMORY SHARE
16
MUX
GNDA
32/64/128 KB
ICE_E
22
GNDD
FLASH
RTM
CONFIGURATION
CONFIGURATION
LCD DRIVER
PARAMETERS
FIGURATION
Voltage
VLCD
LCD_GEN
DIGITAL I/O
Non-Volatile
VLCD
Boost
(I/O RAM)
TEST MUX
CON-
RTC
RAM
RAM
2.5V to logic
V3P3SYS
Regulator
Voltage
VLC2
VLC1
VLC0
TEST MUX
10/11/2011
SENSOR
6
RTCLK
TEMP
TEST
BAT
2
2
SEG Pins
SEGDIO Pins
COM0..5
PB
VBAT
VDD
V3P3D
VBAT_RTC
9