TCA6416A Datasheet, PDF (1/32 Pages) Texas Instruments – LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

TCA6416A
www.ti.com ....................................................................................................................................................................................................... SCPS194 – MAY 2009
LOW-VOLTAGE 16-BIT I²C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
FEATURES
1
• Operating Power-Supply Voltage Range of
1.65 V to 5.5 V
• Allows Bidirectional Voltage-Level Translation
and GPIO Expansion Between:
– 1.8-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
– 2.5-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
– 3.3-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
– 5-V SCL/SDA and
1.8-V, 2.5-V, 3.3-V, or 5-V P Port
• I²C to Parallel Port Expander
• Low Standby Current Consumption of 3 µA
• Schmitt-Trigger Action Allows Slow Input
Transition and Better Switching Noise
Immunity at the SCL and SDA Inputs
– V_hys = 0.18 V Typ at 1.8 V
– V_hys = 0.25 V Typ at 2.5 V
– V_hys = 0.33 V Typ at 3.3 V
– V_hys = 0.5 V Typ at 5 V
• 5-V Tolerant I/O Ports
• Active-Low Reset Input (RESET)
• Open-Drain Active-Low Interrupt Output (INT)
• 400-kHz Fast I²C Bus
• Input/Output Configuration Register
• Polarity Inversion Register
• Internal Power-On Reset
• Power Up With All Channels Configured as
Inputs
• No Glitch On Power Up
• Noise Filter on SCL/SDA Inputs
• Latched Outputs With High-Current Drive
Maximum Capability for Directly Driving LEDs
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
PW PACKAGE
(TOP VIEW)
RTW PACKAGE
(TOP VIEW)
INT ¹
V_CCI ²
RESET ³
P00 ⁴
P01 ⁵
P02 ⁶
P03 ⁷
P04 ⁸
P05 ⁹
P06 10
P07 11
GND 12
24 V_CCP
23 _SDA
22 _SCL
21 ADDR
20 P17
19 P16
18 P15
17 P14
16 P13
15 P12
14 P11
13 P10
P00
P01
P02
P03
P04
P05
24 23 22 21 20 19
1
18
2
17
3
Exposed
Center
16
4
Pad
15
5
14
6
13
7 8 9 10 11 12
ADDR
P17
P16
P15
P14
P13
ZQS PACKAGE
(TOP VIEW)
E
D
C
B
A
54321
The exposed center pad, if used, must be connected
only as a secondary GND or must be left electrically open.
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009, Texas Instruments Incorporated