cbt3244db NXP Semiconductors, cbt3244db Datasheet - Page 2

• Manufacturer Part Number: cbt3244db
• Description: Octal Bus Switch With Quad Output Enables
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
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DESCRIPTION
The CBT3244 provides eight bits of high-speed TTL-compatible bus
switching in a standard ’244 device pinout. The low on-state
resistance of the switch allows connections to be made with minimal
propagation delay.
The CBT3244 device is organized as two 4-bit low-impedance
switches with separate output-enable (OE) inputs. When OE is low,
the switch is on and data can flow from port A to port B, or vice
versa. When OE is high, the switch is open and high-impedance
state exists between the two ports.
The CBT3244 is characterized for operation from -40 to 85 °C.
QUICK REFERENCE DATA
ORDERING INFORMATION
20-Pin Plastic TSSOP
20-Pin Plastic SSOP (QSOP)
20-Pin Plastic SSOP
20-Pin Plastic SO
2003 Feb 20
Standard ’244-type pinout
5 Ω switch connection between two ports
TTL compatible control input levels
Package options include plastic small outline (D), shrink small
outline (DB), QSOP (DS), thin shrink small outline (TSSOP)
Latch-up protection exceeds 500 mA per JESD78
ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
Octal bus switch with quad output enables
SYMBOL
C
IO(OFF)
t
t
I
PLH
PHL
CC
PACKAGES
Propagation delay
An to Yn
Pin capacitance (OFF state)
Quiescent supply current
PARAMETER
TEMPERATURE RANGE
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
-40 to 85 °C
C
V
V
O
CC
L
= 50 pF; V
= 3V or 0V
=5.5 V; I
2
T
O
CC
amb
= 0; V
PIN CONFIGURATION
PIN DESCRIPTION
= 5 V
= 25 °C; GND = 0 V
CONDITIONS
PIN NUMBER
11, 13, 15, 17
18, 16, 14, 12
I
= V
2, 4, 6, 8
9, 7, 5, 3
1, 19
10
20
CC
or GND
ORDER CODE
CBT3244PW
CBT3244DS
CBT3244DB
CBT3244D
GND
1OE
1A1
2B4
1A2
2B3
1A3
2B2
1A4
2B1
10
1
2
3
4
5
6
7
8
9
1OE, 2OE
SYMBOL
1A1-1A4
2A1-2A4
1B1-1B4
2B1-2B4
GND
V
CC
Output enable
Inputs
Inputs
Outputs
Outputs
Ground (0V)
Positive supply voltage
20
19
18
17
16
15
14
13
12
11
SA00501
TYPICAL
NAME AND FUNCTION
250
V
2OE
1B1
2A4
1B2
2A3
1B3
2A2
1B4
2A1
6
1
CC
DWG NUMBER
CBT3244
SOT360-1
SOT556-1
SOT339-1
SOT163-1
Product data
UNIT
µA
ps
pF