CBT3244D PHILIPS [NXP Semiconductors], CBT3244D Datasheet - Page 2

• Manufacturer Part Number: CBT3244D
• Description: Octal bus switch with Quad Output Enables
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
PIN CONFIGURATION
20-Pin plastic SO
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
1998 Dec 08
Functionally equivalent to QS3244
Standard ’244-type pinout
5 switch connection between two ports
TTL compatible control input levels
Package options include plastic small outline (D), shrink small
outline (DB), thin shrink small outline (TSSOP)
Octal bus switch with Quad Output Enables
SYMBOL
C
IO(OFF)
I
t
t
PLH
PHL
CCZ
PACKAGES
Propagation delay
An to Yn
Pin capacitance (OFF state)
Total supply current
GND
1OE
1A1
2B4
1A2
2B3
1A3
2B2
1A4
2B1
10
1
2
3
4
5
6
7
8
9
PARAMETER
TEMPERATURE RANGE
20
19
18
17
16
15
14
13
12
11
SA00501
V
2OE
1B1
2A4
1B2
2A3
1B3
2A2
1B4
2A1
–40 C to 85 C
–40 C to 85 C
–40 C to 85 C
CC
C
V
Outputs disabled; V
O
L
= 50pF; V
= 3V or 0V
OUTSIDE NORTH AMERICA
2
CC
T
amb
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 C to 85 C.
= 5V
PIN DESCRIPTION
CBT3244 PW
CBT3244 DB
CBT3244 D
CONDITIONS
= 25 C; GND = 0V
CC
PIN NUMBER
11, 13, 15, 17
18, 16, 14, 12
2, 4, 6, 8
9, 7, 5, 3
=5.5V
1, 19
10
20
1OE, 2OE
SYMBOL
1A1–1A4
2A1–2A4
1B1–1B4
2B1–2B4
NORTH AMERICA
CBT3244PW DH
GND
V
CBT3244 DB
CBT3244 D
CC
Output enable
Ground (0V)
Positive supply voltage
TYPICAL
NAME AND FUNCTION
Preliminary specification
6
CBT3244
DWG NUMBER
SOT163-1
SOT339-1
SOT360-1
UNIT
pF
ns
A