Integrated Device Technology Inc IDT74CBTLV16245PA, IDT74CBTLV16245PF, IDT74CBTLV16245PV Datasheet
IDT74CBTLV16245
LOW-VOLTAGE 16-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
LOW-VOLTAGE 16-BIT
BUS SWITCH
FEA TURES:
ΩΩ
•5
Ω A/B bi-directional switch
ΩΩ
• Isolation Under Power-Off Conditions
• Over-voltage tolerant
• Latch-up performance exceeds 100mA
•VCC = 2.3V - 3.6V, normal range
• ESD >2000V per MIL-STD-883, Method 3015; >200V using
machine model (C = 200pF, R = 0)
• Available in SSOP, TSSOP, and TVSOP packages
APPLICA TIONS:
• 3.3V High Speed Bus Switching and Bus Isolation
FUNCTIONAL BLOCK DIAGRAM
IDT74CBTLV16245
DESCRIPTION:
The CBTLV16245 is a set of 16-bit bus switches. It has standard 16245
pinouts. The device is organized as dual 8-bit low resistance switches with
independent Output Enable (xOE) control inputs. The switches can be
turned on under the control of the LVTTL-compatible Output Enable signals
(xOE) for bidirectional data flow between port A and port B. When xOE is
high, the switch is off and a high impedance exists between Port A and Port
B.
To ensure the high-impedance state during power up or power down,
OE should be tied to VCC through a pullup resistor.
SIMPLIFIED SCHEMATIC, EACH
SWITCH
1A1
1A8
1OE
2A1
2A8
2OE
47
37
48
36
26
25
SW
SW
SW
SW
2
1B1
A
12
1B8
OE
13
2B1
23
2B8
B
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
2003 Integrated Device Technology, Inc. DSC-5885/6c
FEBRUARY 2003
1
IDT74CBTLV16245
LOW-VOLTAGE 16-BIT BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
1
NC
1B1
1B2
1
1
1B5
1
GND
1
1
2
2B2
GND
2
2
V
2B5
2
GND
2
2
2
3
NC
4
B3
5
6
B4
NC
7
8
B6
9
10
B7
11
B8
12
B1
13
14
15
16
B3
17
B4
18
CC
19
20
B6
21
B7
22
23
B8
NC
24
SSOP/ TSSOP/ TVSOP
TOP VIEW
ABSOLUTE MAXIMUM RATINGS
Symbol Description Max. Unit
VCC Supply Voltage Range –0.5 to 4.6 V
1OE
48
1A1
47
1A2
46
45
NC
44
1
A3
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
A4
1
NC
1A5
A6
1
GND
1
A7
A8
1
2
A1
2A2
GND
2
A3
A4
2
V
CC
2A5
A6
2
GND
2
A7
A8
2
2OE
VI Input Voltage Range –0.5 to 4.6 V
Continuous Channel Current 12 8 mA
IIK Input Clamp Current, VI/O < 0 –50 mA
STG Storage Temperature Range –65 to +150 °C
T
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
PIN DESCRIPTION
Pin Names Description
xOE Output Enable (Active LOW)
xAx Port A Inputs or Outputs
xBx Port B Inputs or Outputs
FUNCTION T ABLE (EACH 8-BIT BUS SWITCH)
Input
OE Operation
L A-Port = B-Port
H Disconnect
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
(1)
(1)
OPERATING CHARACTERISTICS
Symbol Parameter Test Conditions Min. Max. Unit
VCC Supply Voltage 2.3 3.6 V
VIH High-Level Control Input Voltage VCC = 2.3V to 2.7V 1.7 — V
VIL Low-Level Control Input Voltage VCC = 2.3V to 2.7V — 0.7 V
TA Operating Free-Air Temperature –4 0 +85 °C
NOTE:
1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
(1)
VCC = 2.7V to 3.6V 2 —
VCC = 2.7V to 3.6V — 0.8
2
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