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BUS TRANSCEIVER. SN74AUC32245 Datasheet

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BUS TRANSCEIVER. SN74AUC32245 Datasheet






SN74AUC32245 TRANSCEIVER. Datasheet pdf. Equivalent




SN74AUC32245 TRANSCEIVER. Datasheet pdf. Equivalent





Part

SN74AUC32245

Description

32-BIT BUS TRANSCEIVER



Feature


www.ti.com FEATURES • Member of the Te xas Instruments Widebus+™ Family • Optimized for 1.8-V Operation and Is 3. 6-V I/O Tolerant to Support Mixed-Mode Signal Operation • Ioff Supports Part ial-Power-Down Mode Operation • Sub-1 -V Operable SN74AUC32245 32-BIT BUS TR ANSCEIVER WITH 3-STATE OUTPUTS SCES410C – AUGUST 2002 – REVISED MARCH 2005 • Max tpd of 2 ns at 1.8 V • Lo.
Manufacture

Texas Instruments

Datasheet
Download SN74AUC32245 Datasheet


Texas Instruments SN74AUC32245

SN74AUC32245; w Power Consumption, 40-µA Max ICC • ±8-mA Output Drive at 1.8 V • Latch- Up Performance Exceeds 100 mA Per JESD 78, Class II • ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A 114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) DESCRIPTION/ORDERING INFORMATION This 32-bit noninverting bus transceiver is operational at 0.8-V to 2.7-V V.


Texas Instruments SN74AUC32245

CC, but is designed specifically for 1.6 5-V to 1.95-V VCC operation. The SN74AU C32245 is designed for asynchronous com munication between data buses. The cont rol-function implementation minimizes e xternal timing requirements. This devic e can be used as four 8-bit transceiver s, two 16-bit transceivers, or one 32-b it transceiver. It allows data transmis sion from the A bu.


Texas Instruments SN74AUC32245

s 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 device so that the buses a re effectively isolated. To ensure the high-impedance state during power up or power down, OE should be tied to VCC t hrough a pullup resistor; the minimum v alue of the resist.

Part

SN74AUC32245

Description

32-BIT BUS TRANSCEIVER



Feature


www.ti.com FEATURES • Member of the Te xas Instruments Widebus+™ Family • Optimized for 1.8-V Operation and Is 3. 6-V I/O Tolerant to Support Mixed-Mode Signal Operation • Ioff Supports Part ial-Power-Down Mode Operation • Sub-1 -V Operable SN74AUC32245 32-BIT BUS TR ANSCEIVER WITH 3-STATE OUTPUTS SCES410C – AUGUST 2002 – REVISED MARCH 2005 • Max tpd of 2 ns at 1.8 V • Lo.
Manufacture

Texas Instruments

Datasheet
Download SN74AUC32245 Datasheet




 SN74AUC32245
www.ti.com
FEATURES
Member of the Texas Instruments Widebus+™
Family
Optimized for 1.8-V Operation and Is 3.6-V I/O
Tolerant to Support Mixed-Mode Signal
Operation
Ioff Supports Partial-Power-Down Mode
Operation
Sub-1-V Operable
SN74AUC32245
32-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES410C – AUGUST 2002 – REVISED MARCH 2005
Max tpd of 2 ns at 1.8 V
Low Power Consumption, 40-µA Max ICC
• ±8-mA Output Drive at 1.8 V
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
This 32-bit noninverting bus transceiver is operational at 0.8-V to 2.7-V VCC, but is designed specifically for
1.65-V to 1.95-V VCC operation.
The SN74AUC32245 is designed for asynchronous communication between data buses. The control-function
implementation minimizes external timing requirements.
This device can be used as four 8-bit transceivers, two 16-bit transceivers, or one 32-bit transceiver. It allows
data transmission 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 device so that the buses
are effectively isolated.
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.
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.
ORDERING INFORMATION
TA
–40°C to 85°C
LFBGA – GKE
PACKAGE (1)
Tape and reel
ORDERABLE PART NUMBER
SN74AUC32245GKER
TOP-SIDE MARKING
MM245
(1) 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.
Widebus+ is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2002–2005, Texas Instruments Incorporated




 SN74AUC32245
SN74AUC32245
32-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES410C – AUGUST 2002 – REVISED MARCH 2005
GKE PACKAGE
(TOP VIEW)
123456
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
1
A
1B2
B
1B4
C
1B6
D
1B8
E
2B2
F
2B4
G
2B6
H
2B7
J
3B2
K
3B4
L
3B6
M
3B8
N
4B2
P
4B4
R
4B6
T
4B7
TERMINAL ASSIGNMENTS
2
3
4
5
1B1
1DIR
1OE
1A1
1B3
GND
GND
1A3
1B5
VCC
VCC
1A5
1B7
GND
GND
1A7
2B1
GND
GND
2A1
2B3
VCC
VCC
2A3
2B5
GND
GND
2A5
2B8
2DIR
2OE
2A8
3B1
3DIR
3OE
3A1
3B3
GND
GND
3A3
3B5
VCC
VCC
3A5
3B7
GND
GND
3A7
4B1
GND
GND
4A1
4B3
VCC
VCC
4A3
4B5
GND
GND
4A5
4B8
4DIR
4OE
4A8
www.ti.com
6
1A2
1A4
1A6
1A8
2A2
2A4
2A6
2A7
3A2
3A4
3A6
3A8
4A2
4A4
4A6
4A7
2




 SN74AUC32245
www.ti.com
1DIR A3
A5
1A1
SN74AUC32245
32-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES410C – AUGUST 2002 – REVISED MARCH 2005
FUNCTION TABLE
(EACH 8-BIT SECTION)
INPUTS
OE DIR
LL
LH
HX
OPERATION
B data to A bus
A data to B bus
Isolation
LOGIC DIAGRAM (POSITIVE LOGIC)
2DIR H3
A4 1OE
H4 2OE
E5
2A1
A2
1B1
E2
2B1
J3
3DIR
J5
3A1
To Seven Other Channels
J4 3OE
J2 3B1
T3
4DIR
N5
4A1
To Seven Other Channels
T4 4OE
N2 4B1
To Seven Other Channels
To Seven Other Channels
3



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