SN74VMEH22501A Datasheet, PDF (1/30 Pages) Texas Instruments – 8-BIT UNIVERSAL BUS TRANSCEIVER AND TWO 1-BIT BUS TRANSCEIVERS WITH SPLIT LVTTL PORT, FEEDBACK PATH, AND 3-STATE OUTPUTS

SN74VMEH22501A
8ĆBIT UNIVERSAL BUS TRANSCEIVER AND TWO 1ĆBIT BUS TRANSCEIVERS
WITH SPLIT LVTTL PORT, FEEDBACK PATH, AND 3ĆSTATE OUTPUTS
SCES620 – DECEMBER 2004
D Member of the Texas Instruments
Widebus  Family
D UBT Transceiver Combines D-Type
Latches and D-Type Flip-Flops for
Operation in Transparent, Latched, or
Clocked Modes
D OEC Circuitry Improves Signal Integrity
and Reduces Electromagnetic Interference
(EMI)
D Compliant With VME64, 2eVME, and 2eSST
Protocols
D Bus Transceiver Split LVTTL Port Provides
Feedback Path for Control and Diagnostics
Monitoring
D I/O Interfaces Are 5-V Tolerant
D B-Port Outputs (−48 mA/64 mA)
D Y and A-Port Outputs (−12 mA/12 mA)
D I_off, Power-Up 3-State, and BIAS V_CC
Support Live Insertion
D Bus Hold on 3A-Port Data Inputs
D 26-W Equivalent Series Resistor on
3A Ports and Y Outputs
D Flow-Through Architecture Facilitates
Printed Circuit Board Layout
D Distributed V_CC and GND Pins Minimize
High-Speed Switching Noise
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
DGG OR DGV PACKAGE
(TOP VIEW)
1OEBY 1
1A 2
1Y 3
GND 4
2A 5
2Y 6
V_CC 7
2OEBY 8
3A1 9
GND 10
LE 11
3A2 12
3A3 13
OE 14
GND 15
3A4 16
CLKBA 17
V_CC 18
3A5 19
3A6 20
GND 21
3A7 22
3A8 ²³
DIR ²⁴
48 1OEAB
47 V_CC
46 1B
45 GND
44 BIAS V_CC
43 2B
42 V_CC
41 2OEAB
40 3B1
39 GND
38 V_CC
37 3B2
36 3B3
35 V_CC
34 GND
33 3B4
32 CLKAB
31 V_CC
30 3B5
29 3B6
28 GND
27 3B7
26 _3B8
25 _VCC
description/ordering information
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
TSSOP − DGG Tape and reel SN74VMEH22501ADGGR VMEH22501A
−40°C to 85°C TVSOP − DGV Tape and reel SN74VMEH22501ADGVR VK501A
VFBGA − GQL Tape and reel SN74VMEH22501AGQLR VK501A
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines}
are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Motorola is a trademark of Motorola, Inc.
OEC, UBT, and Widebus are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2004, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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