74avc20t245 NXP Semiconductors, 74avc20t245 Datasheet - Page 6

• Manufacturer Part Number: 74avc20t245
• Description: 20-bit Dual Supply Translating Transceiver With Configurable Voltage Translation; 3-state
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 2.
[1]
6. Functional description
Table 3.
[1]
[2]
[3]
74AVC20T245
Product data sheet
Symbol
1DIR, 2DIR
1B1 to 1B10
2B1 to 2B10
GND
V
1OE, 2OE
1A1 to 1A10
2A1 to 2A10
V
n.c.
Supply voltage
V
0.8 V to 3.6 V
0.8 V to 3.6 V
0.8 V to 3.6 V
GND
CC(B)
CC(A)
CC(A)
All GND pins must be connected to ground (0 V).
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
If at least one of V
The nAn, nDIR and nOE input circuit is referenced to V
[1]
[2]
, V
CC(B)
Pin description
Function table
5.2 Pin description
CC(A)
Pin
SOT364-1 and SOT481-2
1, 28
2, 3, 5, 6, 8, 9, 10, 12, 13, 14
15, 16, 17, 19, 20, 21, 23, 24,
26, 27
4, 11, 18, 25, 32, 39, 46, 53
7, 22
56, 29
55, 54, 52, 51, 49, 48, 47, 45,
44, 43
42, 41, 40, 38, 37, 36, 34, 33,
31, 30
35, 50
-
Input
nOE
L
L
H
X
or V
[1]
CC(B)
[3]
is at GND level, the device goes into suspend mode.
All information provided in this document is subject to legal disclaimers.
nDIR
L
H
X
X
Rev. 3 — 22 June 2010
SOT1134-1
A30, A13
B20, A31, D5, D1, B1, A2,
B2, A4, B3, A5
A6, B5, A7, B6, A9, B7, D2,
D6, A12, B8
A19, A24, A27
A1, A10
B18, A28, D8, D4, B17,
A25, B16, A23, B15, A22
A21, B13, A20, B12, A18,
B11, D3, D7, A15, B10
B4, B9, B14, B19
A32, A3, A8, A11, A16,
A29, A14
A17, A26
CC(A)
[3]
; The nBn input circuit is referenced to V
20-bit dual supply translating transceiver; 3-state
Input/output
nAn
nAn = nBn
input
Z
Z
[3]
Description
direction control
data input or output
data input or output
ground (0 V)
supply voltage B (nBn inputs are
referenced to V
output enable input (active LOW)
data input or output
data input or output
supply voltage A (nAn, nOE and nDIR
inputs are referenced to V
not connected
[2]
74AVC20T245
CC(B)
.
CC(B)
nBn
input
nBn = nAn
Z
Z
)
© NXP B.V. 2010. All rights reserved.
[3]
CC(A)
)
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