71M6541D Datasheet, PDF (9/166 Pages) Maxim Integrated Products – 0.1% Accuracy Over 2000:1 Current Range Energy Meter ICs

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