Philips CBT6810 Datasheet
INTEGRATED CIRCUITS
CBT6810
10-bit bus switch with precharged outputs
and Schottky undershoot protection for
live insertion
Product specification
1999 Apr 05
Philips Semiconductors Product specification
10-bit bus switch with precharged outputs
and Schottky undershoot protection for live insertion
FEA TURES
•5Ω switch connection between port A and port B
•TTL compatible input and output levels
•Undershoot protection included to prevent shoot through level
changes
•Bias voltage pre-charges the outputs to minimize signal distortion
during live insertion
QUICK REFERENCE DATA
SYMBOL PARAMETER
t
PLH
t
PHL
C
C
IN
IO
Propagation delay
An to Bn or Bn to An
CL = 50pF; VCC = 5V 250 ps
Input capacitance VI = 0V or V
Input/output capacitance Outputs disabled; VO = 0V or V
DESCRIPTION
The CBT6810 provides ten bits of high-speed TTL-compatible bus
switching. The low on-state resistance of the switch allows
bi-directional connections to be made while adding near-zero
propagation delay. The device also precharges the B port to a
user-selectable bias voltage (BIASV) to minimize live-insertion
noise.
The CBT6810 is organized as one 10-bit switch with a single enable
(OE
) input. When OE is low, the switch is on and port A is
connected to port B. When OE
and port B is open and the B port is precharged to BIASV through
the equivalent of a 10-kΩ resistor.
The CBT6810 is characterized for operation from 0°C to 85°C.
CONDITIONS
T
= 25°C; GND = 0V
amb
CC
CC
CBT6810
is high, the switch between port A
TYPICAL UNIT
3.5 pF
9.0 pF
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
24-Pin Plastic TSSOP Type I –40°C to +85°C CBT6810 PW CBT6810PW DH SOT355–1
PIN CONFIGURATION
OE
1
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
A9
11
A10
12
GND
24
Vcc
23
B1
22
B2
21
B3
20
B4
19
B5
18
B6
17
B7
16
B8
15
B9
14
B10
BIASV
13
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
1 OE Output enable
13 BIASV Bias supply pin
2, 3, 4, 5, 6,
7, 8, 9, 10, 11
23, 22, 21, 20, 19,
18, 17, 16, 15, 14
12 GND Ground (V)
24 V
A1–A10 A - port side
B1–B10 B - port side with active pullup
Positive supply voltage
CC
SA00505
1999 Apr 05 853–2151 21177
2
Philips Semiconductors Product specification
10-bit bus switch with precharged outputs
and Schottky undershoot protection for live insertion
LOGIC SYMBOL
A1
A10
CE
BIASV
B1
B10
FUNCTION TABLE
H = High voltage level
L = Low voltage level
Z = High impedance “off” state
CBT6810
OE STATE
L A port = B port
H A port = Z
H B port = BIASV
SA00531
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
CC
I
IK
V
I
SW
T
stg
BIASV DC Bias voltage range –0.5 to 7.0 V
øJA
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create ju nction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
DC supply voltage –0.5 to +7.0 V
DC clamp diode current –50 mA
DC input voltage
I
DC continuous channel current ± 128 mA
Storage temperature range –65 to 150 °C
Power dissipation per package
Plastic thin shrink small outline package
PARAMETER CONDITIONS RATING UNIT
3
1, 2
–0.5 to +7.0 V
134 °C/W
1999 Apr 05
3
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