74AVCH20T245 NXP, 74AVCH20T245 Datasheet - Page 5

• Manufacturer Part Number: 74AVCH20T245
• Description: 20-bit Dual Supply Translating Transceiver
• Manufacturer: NXP

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NXP Semiconductors
Table 2.
[1]
6. Functional description
Table 3.
[1]
[2]
[3]
7. Limiting values
Table 4.
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
74AVCH20T245_1
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
Symbol
V
V
I
V
I
V
I
I
IK
OK
O
CC
CC(B)
CC(A)
CC(A)
CC(A)
CC(B)
I
O
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
Limiting values
Parameter
supply voltage A
supply voltage B
input clamping current
input voltage
output clamping current
output voltage
output current
supply current
5.2 Pin description
CC(A)
Pin
1, 28
4, 11, 18, 25, 32, 39, 46, 53
7, 22
56, 29
35, 50
-
2, 3, 5, 6, 8, 9, 10, 12, 13, 14
15, 16, 17, 19, 20, 21, 23, 24, 26, 27
55, 54, 52, 51, 49, 48, 47, 45, 44, 43
42, 41, 40, 38, 37, 36, 34, 33, 31, 30
Input
nOE
L
L
H
X
or V
[1]
CC(B)
[3]
is at GND level, the device goes into suspend mode.
Conditions
V
V
Active mode
Suspend or 3-state mode
V
I
CC(A)
I
O
O
< 0 V
< 0 V
= 0 V to V
Rev. 01 — 13 January 2010
nDIR
L
H
X
X
or I
CC(A)
CC(B)
[3]
; The nBn input circuit is referenced to V
CCO
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
20-bit dual supply translating transceiver; 3-state
CC(A)
)
Input/output
nAn
nAn = nBn
input
Z
Z
[3]
[1][2][3]
[1]
[1]
[2]
Min
−0.5
−0.5
−50
−0.5
−50
−0.5
−0.5
-
-
74AVCH20T245
[2]
CC(B)
.
nBn
input
nBn = nAn
Z
Z
Max
+4.6
+4.6
-
+4.6
-
V
+4.6
±50
100
CCO
© NXP B.V. 2010. All rights reserved.
[3]
+ 0.5
CC(B)
Unit
V
V
mA
V
mA
V
V
mA
mA
)
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