71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
AUGUST 2007
Digital Pins:
Name
Pin #
Type
O
Circuit
Description
COM3,
16
COM2,
15
14
LCD Common Outputs: These 4 pins provide the select signals for the
LCD display.
5
5
COM1,
COM0
13
SEG19…SEG8,
SEG2…SEG0
SEG24/DIO4…
SEG31/DIO11,
SEG34/DIO14…
SEG37/DIO17
SEG7/
See
pinout
O
Dedicated LCD Segment Output pins.
Multi-use pins, configurable as either LCD SEG driver or DIO (DIO4 =
SCK, DIO5 = SDA when configured as EEPROM interface, WPULSE
= DIO6, VARPULSE = DIO7 when configured as pulse outputs). If
unused, these pins must be configured as outputs.
Multi-use-pin LCD Segment Output/ MUX_SYNC is output for
Synchronous serial interface
See
O
3, 4, 5
pinout
24
23
O
4, 5
2, 5
MUX_SYNC
Multi-use-pin, LCD Segment Outputs/ SRDY input for Synchronous
serial interface. When configured as SRDY, this pin must be pulled
down to GNDD.
SEG6/SRDY
I/O
Multi-use-pin, LCD Segment Output/ SFR output for Synchronous
serial interface.
SEG5/SFR
11
10
6
O
O
O
4, 5
4, 5
4, 5
Multi-use-pin, LCD Segment Output/ SDATA output for Synchronous
serial interface.
SEG4/SDATA
Multi-use-pin, LCD Segment Output/ SCLK output for Synchronous
serial interface.
SEG3/SCLK
CKTEST
TMUXOUT
8
4
O
O
4
4
Clock PLL output. Can be enabled and disabled by CKOUT_DIS.
Digital output test multiplexer. Controlled by DMUX[3:0].
Optical Receive Input: This pin may receive a signal from an external
photo-detector used in an IR serial interface. If this pin is unused it
must be terminated to V3P3D or GNDD.
OPT_RX
57
I
7
Optical LED Transmit Output: This pin is designed to directly drive an
LED for transmitting data in an IR serial interface. Can be tristated with
OPT_TXDIS to be multiplexed with other DIO pins.
This input pin resets the chip into a known state. For normal operation,
this pin is set to 1. To reset the chip, this pin is driven to 0. This pin
has an internal 30µA (nominal) current source pull up. A 0.1µF ca-
pacitor to GNDD should be connected to this pin. See the precau-
tions in the Applications Section for terminating this pin.
UART input. The voltage applied at this input must be below 3.6V.
If this pin is unused it must be terminated to V3P3D or GNDD.
UART output.
OPT_TX
3
O
4
RESETZ
RX
48
45
I
I
1
3
TX
E_RXTX
E_TCLK
5
2
64
O
I/O
O
4
1, 4
4
Emulator serial data. This pin has an internal pull-up resistor.
Emulator clock.
Emulator reset. This pin has an internal pull-up resistor. See the
precautions in the Applications Section for terminating this pin.
Enables Production Test. This pin must be grounded in normal
operation.
E_RST
63
I/O
1, 4
TEST
60
I
7
Pin types: P = Power, O = Output, I = Input, I/O = Input/Output
The circuit number denotes the equivalent circuit, as specified on the following page.
Page: 93 of 95
© 2005-2007 TERIDIAN Semiconductor Corporation
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