SN74LVC16652 Datasheet, PDF (1/10 Pages) Texas Instruments – 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS

SN74LVC16652
16-BIT BUS TRANSCEIVER AND REGISTER
WITH 3-STATE OUTPUTS
SCAS319B – NOVEMBER 1993 – REVISED JULY 1995
D Member of the Texas Instruments
Widebus ™ Family
DGG OR DL PACKAGE
(TOP VIEW)
D EPIC ™ (Enhanced-Performance Implanted
CMOS) Submicron Process
D Typical V_OLP (Output Ground Bounce)
< 0.8 V at V_CC = 3.3 V, T_A = 25°C
D Typical V_OHV (Output V_OH Undershoot)
> 2 V at V_CC = 3.3 V, T_A = 25°C
D Latch-Up Performance Exceeds 250 mA
Per JEDEC Standard JESD-17
D Bus Hold on Data Inputs Eliminates the
1OEAB 1
1CLKAB 2
1SAB 3
GND 4
1A1 5
1A2 6
V_CC 7
1A3 8
1A4 9
56 1OEBA
55 1CLKBA
54 1SBA
53 GND
52 1B1
51 1B2
50 V_CC
49 1B3
48 1B4
Need for External Pullup/Pulldown
1A5 10 47 1B5
Resistors
GND 11 46 GND
D Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages
1A6 12
1A7 13
1A8 14
2A1 15
45 1B6
44 1B7
43 1B8
42 2B1
description
2A2 16 41 2B2
This 16-bit bus transceiver and register is
designed for low-voltage (3.3-V) V_CC operation.
2A3 17
GND 18
2A4 19
40 2B3
39 GND
38 2B4
The SN74LVC16652 consists of D-type flip-flops
2A5 20 37 2B5
and control circuitry arranged for multiplexed
2A6 21 36 2B6
transmission of data directly from the data bus or
from the internal storage registers. The device can
V_CC 22
2A7 23
35 V_CC
34 2B7
be used as two 8-bit transceivers or one 16-bit
2A8 24 33 2B8
transceiver.
GND 25 32 GND
Complementary output-enable (OEAB and
OEBA) inputs control the transceiver functions.
Select-control (SAB and SBA) inputs select
2SAB 26
2CLKAB 27
2OEAB 28
31 2SBA
30 2CLKBA
29 2OEBA
whether real-time or stored data is transferred. A
low input level selects real-time data, and a high input level selects stored data. The circuitry used for select
control eliminates the typical decoding glitch that occurs in a multiplexer during the transition between stored
and real-time data. Figure 1 illustrates the four fundamental bus-management functions that can be performed
with the SN74LVC16652.
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.
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
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 © 1995, Texas Instruments Incorporated
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1