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INTEGRATED CIRCUITS
CBTD16212
24-bit level shifting bus exchange switch
with 12-bit output enables
Product data
File under Integrated Ciruits ICL03
2001 Sep 28
Philips Semiconductors Product data
24-bit level shifting bus exchange switch
with 12-bit output enables
FEA TURES
•5 Ω switch connection between two ports
•TTL compatible control input levels
•Designed to be used in level shifting applications
•Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
•ESD protection exceeds 1500 V HBM per JESD22-114A and
1000 V CDM per JESD22-C101
QUICK REFERENCE DATA
SYMBOL PARAMETER
t
pd
C
IN
C
OUT
r
on
Propagation delay
An to Bn
Input capacitance VI = 0 V or V
Output capacitance Outputs disabled; VO = 0 V or V
A1 to A2 VCC = 5.5 V; VI = 0 V 5 Ω
CL = 50 pF; VCC = 5 V 0.25 ns
T
CC
CBTD16212
DESCRIPTION
The CBTD16212 provides 24 bits of high-speed TTL-compatible bus
switching or exchanging. The low on-state resistance of the switch
allows connections to be made with minimal propagation delay.
A diode to V
between 5 V inputs and 3.3 V outputs.
The CBTD16212 operates as 24-bit bus switch or a 12-bit bus
exchanger, which provides data exchanging between the four signal
ports via the data-select (S0–S2) terminals.
The CBT16212 is characterized for operation from –40 to +85 °C.
CONDITIONS
= 25 °C; GND = 0 V
amb
is integrated into the circuit to allow for level shifting
CC
TYPICAL UNIT
4.5 pF
CC
11.5 pF
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE ORDER CODE DWG NUMBER
56-Pin Plastic SSOP –40 to +85 °C CBTD16212DL SOT371-1
56-Pin Plastic TSSOP –40 to +85 °C CBTD16212DGG SOT364-1
NOTE:
1. Standard packing quantities and other packaging data is available at www.philipslogic.com/support/packages .
FUNCTION TABLE
S2 S1 S0 A1 A2 FUNCTION
L L L Z Z Disconnect
L L H B1 Z A1 = B1
L H L B2 Z A1 = B2
L H H Z B1 A2 = B1
H L L Z B2 A2 = B2
H L H Z Z Disconnect
H H L B1 B2 A1 = B1, A2 = B2
H H H B2 B1 A1 = B2, A2 = B1
H = High voltage level
L = Low voltage level
Z = High impedance “off” state
LOGIC SYMBOL
254
1A1
353
1A2
1
S0
56
S1
55
S2
1 of 12 Channels
FLOW CONTROL
1B1
1B2
SA00512
2001 Sep 28 853–2284 27173
2
Philips Semiconductors Product data
24-bit level shifting bus exchange switch
with 12-bit output enables
PIN CONFIGURATION
1A1
1A2
2A1
2A2
3A1
3A2
GND
4A1
4A2
5A1
5A2
6A1
6A2
7A1
7A2
V
8A1
GND
8A2
9A1
9A2
10A1
10A2
11A1
11A2
12A1
12A2
1
S0
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CC
18
19
20
21
22
23
24
25
26
27
28
56
S1
55
S2
54
1B1
1B2
53
52
2B1
2B2
51
3B1
50
GND
49
3B2
48
47
4B1
46
4B2
45
5B1
44
5B2
43
6B1
6B2
42
7B1
41
40
7B2
39
8B1
38
GND
37
8B2
36
9B1
35
9B2
34
10B1
33
10B2
32
11B1
31
11B2
30
12B1
12B2
29
CBTD16212
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
1, 56, 55 S0, S1, S2 Data select
2, 4, 6, 9, 11, 13, 15,
18, 21, 23, 25, 27
3, 5, 7, 10, 12, 14, 16,
20, 22, 24, 26, 28
54, 52, 50, 47, 45, 43,
41, 39, 36, 34, 32, 30
53, 51, 48, 46, 44, 42,
40, 37, 35, 33, 31, 29
8, 19, 38, 49 GND Ground (0 V)
17 V
1A1–12A1 A1 channel
1A2–12A2 A2 channel
1B1, 12B1 B1 channel
1B2, 12B2 B2 channel
CC
Positive supply voltage
2001 Sep 28
SA00511
3