74LVC_LVCH8T245 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 3 — 12 December 2011 6 of 28
NXP Semiconductors
74LVC8T245; 74LVCH8T245
8-bit dual supply translating transceiver; 3-state
[1] V
CCO
is the supply voltage associated with the output port.
[2] V
CCI
is the supply voltage associated with the data input port.
[3] To guarantee the node switches, an external driver must source/sink at least I
BHLO
/ I
BHHO
when the input is in the range V
IL
to V
IH
.
I
BHLO
bus hold LOW overdrive
current
A or B port; V
CCI
= 1.2 V
[2][3]
-19-A
I
BHHO
bus hold HIGH overdrive
current
A or B port; V
CCI
= 1.2 V
[2][3]
- 19 - A
I
OZ
OFF-state output current A or B port; V
O
=0 Vor V
CCO
;
V
CCO
= 1.2 V to 5.5 V
[1]
-- 1 A
suspend mode A port; V
O
=0VorV
CCO
;
V
CC(A)
= 5.5 V; V
CC(B)
=0V
[1]
-- 1 A
suspend mode B port; V
O
=0VorV
CCO
;
V
CC(A)
=0 V; V
CC(B)
=5.5V
[1]
-- 1 A
I
OFF
power-off leakage current A port; V
I
or V
O
= 0 V to 5.5 V;
V
CC(A)
=0V;V
CC(B)
= 1.2 V to 5.5 V
-- 1 A
B port; V
I
or V
O
= 0 V to 5.5 V;
V
CC(B)
=0V;V
CC(A)
= 1.2 V to 5.5 V
-- 1 A
C
I
input capacitance DIR, OE input; V
I
= 0 V or 3.3 V; V
CC(A)
=3.3V - 3 - pF
C
I/O
input/output capacitance A and B port; V
O
=3.3Vor0V;
V
CC(A)
=V
CC(B)
=3.3V
-6.5-pF
Table 6. Typical static characteristics at T
amb
= 25 C …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Typ Max Unit
Table 7. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions 40 C to +85 C 40 C to +125 C Unit
Min Max Min Max
V
IH
HIGH-level
input voltage
data input
[1]
V
CCI
= 1.2 V 0.8V
CCI
-0.8V
CCI
-V
V
CCI
= 1.4 V to 1.95 V 0.65V
CCI
-0.65V
CCI
-V
V
CCI
= 2.3 V to 2.7 V 1.7 - 1.7 - V
V
CCI
= 3.0 V to 3.6 V 2.0 - 2.0 - V
V
CCI
= 4.5 V to 5.5 V 0.7V
CCI
-0.7V
CCI
-V
DIR, OE
input
V
CCI
= 1.2 V 0.8V
CC(A)
-0.8V
CC(A)
-V
V
CCI
= 1.4 V to 1.95 V 0.65V
CC(A)
-0.65V
CC(A)
-V
V
CCI
= 2.3 V to 2.7 V 1.7 - 1.7 - V
V
CCI
= 3.0 V to 3.6 V 2.0 - 2.0 - V
V
CCI
= 4.5 V to 5.5 V 0.7V
CC(A)
-0.7V
CC(A)
-V