ST2149 4-bit dual supply level translator without direction control pin

The ST2149 is a 4-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages, VCCand VL, set the logic levels on either side of the device. Its architecture allows bi-directional level translation without a control pin.

The ST2149 accepts VLfrom 1.65 to 3.6 V and VCCfrom 1.65 to 5.5 V, making it ideal for data transfer between low-voltage ASICs/PLD and higher voltage systems. This device has a tri-state output mode which can be used to disable all I/Os.

The ST2149 supports power-down mode when VCCis grounded/floating or when the device is disabled via the OE pin

技术特性

42 MHz: 84 Mbps (max.) data rate at VL= 1.8 V, VCC= 3.3 V
Bi-directional level translation without direction control pin
Wide voltage range (VCC≥ VL):
- VLranges from 1.65 to 3.6 V
- VCCranges from VLto 5.5 V
Power-down mode feature - when VCCsupply is off, all I/Os are in high impedance
Totem pole driving
5.5 V tolerant enable pin
ESD performance on all pins: ±2 kV HBM
Small package and footprint QFN16 (2.6 x 1.8 mm) package

ST2149 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
ST2149QTR	Active		1000	VFQFPN 16 2.6x1.8x0.55	Tape And Reel		ST2149QTR

DATASHEET

描述	版本	大小
ST2149 : DS6370: 4-bit dual supply level translator without direction control pin	2	432KB