ST16C32245 14-bit dual supply bus transceiver level translator, A side series resistor 2-bit I²C lines

The ST16C32245 is a duST16C32245 is a dual supply low voltage CMOS 14-bit bus transceiver fabricated with submicron silicon gate and five-layer metal wiring C2MOS technology. Designed for use as an interface between a 3.3 V bus and a 2.5 V or 1.8 V bus in a mixed 3.3 V/1.8 V,3.3 V/2.5 V and 2.5 V/1.8 V supply systems, it achieves high speed operation while maintaining the CMOS low power dissipation and it includes 2-bit I²C level translation. This IC is intended for two-way asynchronous communication between data buses and the direction of data transmission is determined by nDIR inputs. The enable inputs nG can be used to disable the device so that the buses are effectively isolated. The A-port interfaces with the 3 V bus, the B-port with the 2.5 V and 1.8 V bus. All inputs are equipped with protection circuits against static discharge, giving them 2 KV ESD immunity and transient excess voltage. All floating bus terminals during high Z state do not need external pull-up or pull-down resistor.

技术特性

High speed: tPD = 4.4 ns (max) at TA = 85 °C VCCA = 3.0 V and VCCB = 2.3 V
Low power dissipation: ICCA = ICCB = 20 µA(max) at TA = 85 °C
Symmetrical output impedance: |IOHA| = IOLA = 8 mA min (VCCA = 3.0 V; VCCB = 1.65 V or 2.3 V) |IOHB| = IOLB = 6 mA min (VCCB = 1.65 V VCCA = 3.0 V; )
Balanced propagation delays: tPLH = tPHL
Power down protection on inputs and outputs
26 Ω series resistor on A side outputs
Operating voltage range: VCCA (opr) = 2.3 V to 3.6 V VCCB (opr) = 1.65 V to 2.7 V
Fast I²C lines 1.8 V/2.8 V level translator: 400 KHz guaranteed data rate at CL = 15 pF
Bus hold provided on data input both side
Latch-up performance exceeds 500mA (JESD 17)
ESD performance: HBM > 2000 V (MIL STD 883 method 3015); MM > 200 V

ST16C32245 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
ST16C32245TBR-E	Active		1000	TFBGA 42 3.5x4x1.1	Tape And Reel		ST16C32245TBR-E

DATASHEET

描述	版本	大小
ST16C32245 : DS4043: 14-bit dual supply bus transceiver level translator A side series resistor, 2-bit I²C lines	3	288KB