78M6612-IMR/F Maxim Integrated Products, 78M6612-IMR/F Datasheet - Page 107

• Manufacturer Part Number: 78M6612-IMR/F
• Description: IC POWER MEASUREMENT AC 68-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 78M6612-IMR/F

• Mounting Style: SMD/SMT
• Package / Case: QFN-68
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS_6612_001
7.3 Digital Pins
Rev. 1.2
Name
COM3,
COM2,
COM1,
COM0
SEG0…SEG18
SEG24/DIO4…
SEG31/DIO11
SEG34/DIO14
…
SEG37/DIO17,
SEG39/DIO19,
SEG40/DIO20
SEG41/DIO21
E_RXTX/SEG38
E_RST/SEG32
E_TCLK/SEG33
ICE_E
CKTEST/SEG19
TMUXOUT
RX1/DIO1
TX1/DIO2
DIO3
RESET
RX0
TX0
TEST
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.
Type Circuit
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
I
I
I
I
3, 4, 5
3, 4, 5
3, 4, 5
1, 4, 5
3, 4, 7
4, 5
4, 5
3, 4
3, 4
5
5
2
4
3
3
4
7
Description
LCD common outputs: These four pins provide the select signals for the LCD
display.
Dedicated LCD segment output pins. SEG 14 and SEG15 are only
available on the 68-pin package.
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 DIOs and set to outputs by the firmware.
Multi-use pins, configurable as either LCD SEG driver or DIO. If unused,
these pins must be configured as DIOs and set to outputs by the
firmware.
Multi-use pins, configurable as LCD driver or DIO (QFN 68 package only). If
unused, this pin must be configured as a DIO and set to an output by
the firmware.
ICE enable. When zero, E_RST, E_TCLK, and E_RXTX become SEG32,
SEG33, and SEG38 respectively. For production units, this pin should be
pulled to GND to disable the emulator port. This pin should be brought out to
the programming interface in order to create a way for reprogramming parts
that have the SECURE
Multi-use pin, configurable as either Clock PLL output or LCD segment
driver. Can be enabled and disabled by CKOUT_E[1:0].
Digital output test multiplexer. Controlled by TMUX[4:0].
Multi-use pin, configurable as UART1 Input or general DIO. When con-
figured as RX1, this pin can optionally receive a signal from an external
photo-detector used in an IR serial interface. If unused, this pin must be
terminated to V3P3D or GNDD, or configured as a DIO and set to an
output by the firmware.
Multi-use pin, configurable as a transmit output from UART1 (or optionally an
Optical LED Transmit Output), WPULSE, RPULSE, or general DIO. When
configured as TX1, this pin is capable of directly driving an LED for
transmitting data in an IR serial interface. If unused, this pin must be left
open, or configured as a DIO and set to an output by the firmware.
DIO pin (QFN 68 package only)
This input pin resets the chip into a known state. For normal operation, this
pin is connected to GNDD. To reset the chip, this pin should be pulled high.
No external reset circuitry is necessary. Direct connect to ground in normal
operation.
UART output.
Enables Production Test. Must be grounded in normal operation.
Multi-use pins, configurable as either emulator port pins (when ICE_E pulled
high) or LCD SEG drivers (when ICE_E tied to GND).
UART input. If unused, this pin must be terminated to V3P3D or GNDD.
bit set.
78M6612 Data Sheet
107