1. Functional Description
• Low-Voltage, Low-Power 2-Bit × 2 Dual-Supply Bus Transceiver
2. General
The TC7MP3215FT is an advanced high-speed CMOS 4-bit dual supply voltage interface bus transceiver
fabricated with silicon gate CMOS technology.
All inputs and outputs have tolerant function, and can be applied up to 3.6 V at power down mode.
The input consists of two same 2-bit configuration and it can be used as dual 2-bit configurations or single 4-bit
configuration.
When the DIR input that changes transmission direction is H level, A-bus works as input and B-bus works as
output, and when the DIR is L level, A-bus works as output and B-bus works as input.
When the Enable input OE is H level, both A-bus and B-bus become to floating state (high-impedance).
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
3. Features (Note)
(1) Wide operating temperature range: Topr = -40 to 125
(2) Operating voltage: 1.2 V and 1.8 V / 1.2 V and 2.5 V / 1.2 V and 3.3 V / 1.5 V and 2.5 V
1.5 V and 3.3 V / 1.8 V and 2.5 V / 1.8 V and 3.3 V / 2.5 V and 3.3 V
bidirectional interface
(3) High-speed operation: tpd = 6.8 ns (max) (VCCA = 2.5 ± 0.2 V, VCCB = 3.3 ± 0.3 V)
tpd = 8.9 ns (max) (VCCA = 1.8 ± 0.15 V, VCCB = 3.3 ± 0.3 V)
tpd = 10.3 ns (max) (VCCA = 1.5 ± 0.1 V, VCCB = 3.3 ± 0.3 V)
tpd = 61 ns (max) (VCCA = 1.2 ± 0.1 V, VCCB = 3.3 ± 0.3 V)
tpd = 9.5 ns (max) (VCCA = 1.8 ± 0.15 V, VCCB = 2.5 ± 0.2 V)
tpd = 10.8 ns (max) (VCCA = 1.5 ± 0.1 V, VCCB = 2.5 ± 0.2 V)
tpd = 60 ns (max) (VCCA = 1.2 ± 0.1 V, VCCB = 2.5 ± 0.2 V)
tpd = 58 ns (max) (VCCA = 1.2 ± 0.1 V, VCCB = 1.8 ± 0.15 V)
(4) Output current: |IOH|/IOL = 12 mA (min) (VCC = 3.0 V)
|IOH|/IOL = 9 mA (min) (VCC = 2.3 V)
|IOH|/IOL = 3 mA (min) (VCC = 1.65 V)
|IOH|/IOL = 1 mA (min) (VCC = 1.4 V)
(5) Ultra-small package: TSSOP16B
(6) Low power dissipation: By using the new circuit, the power consumption is reduced
significantly when OE = "H".
Suitable for battery-driven applications such as PDAs and cellular phones.
(7) Floating of A-bus and B-bus is permitted (when OE = "H").
(8) 3.6 V tolerance and power-down protection are provided to all inputs and outputs.