SN74AVC32T245 具有可配置电压转换和 3 态输出的 32 位双电源总线收发器

This 32-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC32T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC32T245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are effectively isolated.

The SN74AVC32T245 is designed so that the control pins (1DIR, 2DIR, 3DIR, 4DIR, 1OE, 2OE, 3OE, and 4OE) are supplied by VCCA.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver

	SN74AVC32T245
No. of Bits	32
Technology Family	AVC
Pin/Package	96LFBGA
Operating Temperature Range(°C)	-40 to 85
Approx. Price (US$)	1.80 | 1ku
Rating	Catalog

SN74AVC32T245 特性

• Member of the Texas Instruments Widebus+TM Family
• Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
• VCC Isolation Feature — If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State
• Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications
• Fully Configurable Dual-Rail Design Allows Each Port to Operate Over Full 1.2-V to 3.6-V Power-Supply Range
• Ioff Supports Partial-Power-Down Mode Operation
• I/Os Are 4.6-V Tolerant
• Max Data Rates
  • 380 Mbps (1.8-V to 3.3-V Translation)
  • 200 Mbps (< 1.8-V to 3.3-V Translation)
  • 200 Mbps (Translate to 2.5 V or 1.8V)
  • 150 Mbps (Translate to 1.5 V)
  • 100 Mbps (Translate to 1.2 V)
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
  • 4000-V Human-Body Model (A114-A)
  • 200-V Machine Model (A115-A)
  • 1000-V Charged-Device Model (C101)

SN74AVC32T245 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
SN74AVC32T245GKER	ACTIVE	-40 to 85	2.50 | 1ku	LFBGA (GKE) | 96	1000 | LARGE T&R
SN74AVC32T245ZKER	ACTIVE	-40 to 85	1.80 | 1ku	LFBGA (ZKE) | 96	1000 | LARGE T&R

SN74AVC32T245 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
SN74AVC32T245GKER	TBD	SNPB	Level-2-235C-1 YEAR	SN74AVC32T245GKER	SN74AVC32T245GKER
SN74AVC32T245ZKER	Green (RoHS & no Sb/Br)	SNAGCU	Level-3-260C-168 HR	SN74AVC32T245ZKER	SN74AVC32T245ZKER

SN74AVC32T245 应用技术支持与电子电路设计开发资源下载

1. SN74AVC32T245 数据资料 dataSheet 下载.PDF
2. TI 德州仪器电压电平转换产品选型与价格 . xls
3. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
4. Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
5. TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
6. Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
7. CMOS Power Consumption and CPD Calculation (PDF 89 KB)
8. Designing With Logic (PDF 186 KB)
9. Live Insertion (PDF 150 KB)
10. Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
11. Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
12. HiRel Unitrode Power Management Brochure (PDF 206 KB)
13. LOGIC Pocket Data Book (PDF 6001 KB)
14. HiRel Unitrode Power Management Brochure (PDF 206 KB)
15. Logic Cross-Reference (PDF 2938 KB)