Philips CBT3251 Technical data
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INTEGRATED CIRCUITS
CBT3251
1-of-8 FET multiplexer/demultiplexer
Preliminary data 2002 Sep 09
Philips Semiconductors Preliminary data
CBT32511-of-8 FET multiplexer/demultiplexer
FEATURES
•5 Ω switch connection between two ports
•TTL-compatible input levels
•Minimal propagation delay through the switch
•ESD protection exceeds 2000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
•Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
DESCRIPTION
The CBT3251 is a 1-of-8 high-speed TTL-compatible FET
multiplexer/demultiplexer. The low on resistance of the switch allows
inputs to be connected to outputs without adding propagation delay
or generating additional ground bounce noise.
When output enable (OE
and S2 select one of the B outputs for the A-input data.
The CBT3251 is characterized for operation from –40 to +85°C.
) is low, the CBT3251 is enabled. S0, S1,
PIN CONFIGURATION
1
B4
2
B3
3
B2
4
B1
5
A
6
NC
7
OE
89
GND
16
15
14
13
12
11
10
SA00570
V
CC
B5
B6
B7
B8
S0
S1
S2
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
1, 2, 3,
4, 12,
13, 14,
15
5 A A input
6 NC No internal connection
7 OE Output enable
8 GND Ground (0 V)
9, 10, 11 S0, S1, S2 Select-control input
16 V
B1, B2, B3, B4,
B5, B6, B7, B8
CC
B outputs
Positive supply voltage
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE ORDER CODE TOPSIDE MARK DWG NUMBER
16-pin plastic SOIC –40 to 85 °C CBT3251D CBT3251D SOT109-1
16-pin plastic SSOP –40 to 85 °C CBT3251DB CT3251 SOT338-1
16-pin plastic SSOP (QSOP) –40 to 85 °C CBT3251DS CBT3251 SOT519-1
16-pin plastic TSSOP –40 to 85 °C CBT3251PW CBT3251 SOT403-1
Standard packing quantities and other packaging data is available at www.philipslogic.com/packaging.
2002 Sep 09
2
Philips Semiconductors Preliminary data
FUNCTION
CBT32511-of-8 FET multiplexer/demultiplexer
LOGIC DIAGRAM (positive logic)
OE
5
A
7
11
S0
10
S1
9
S2
4
B1
3
B2
2
B3
1
B4
15
B5
14
B6
13
B7
12
B8
FUNCTION TABLE
INPUTS
OE S2 S1 S0
L L L L A port = B1 port
L L L H A port = B2 port
L L H L A port = B3 port
L L H H A port = B4 port
L H L L A port = B5 port
L H L H A port = B6 port
L H H L A port = B7 port
L H H H A port = B8 port
H X X X Disconnect
SA00636
2002 Sep 09
3
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