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參數(shù)資料
| 型號(hào)： | 74LVCH16245A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 16-bit bus transceiver with direction pin;5V tolerant (3-State)(具有定向引腳的5V容限的16位總線收發(fā)器（三態(tài)）) |
| 中文描述： | 16位總線收發(fā)器引腳方向;承受5V（3態(tài)）（具有定向引腳的5V的容限的16位總線收發(fā)器（三態(tài)）） |
| 文件頁數(shù)： | 5/10頁 |
| 文件大?。?/td> | 83K |
| 代理商： | 74LVCH16245A |
Philips Semiconductors
Product specification
74LVC16245A/
74LVCH16245A
16-bit bus transceiver with direction pin; 5V tolerant
(3-State)
1997 Sep 25
5
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (ground = 0V)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
°
C to +85
°
C
UNIT
MIN
TYP
1
MAX
V
IH
HIGH level Input voltage
V
CC
= 1.2V
V
CC
V
V
CC
= 2.7 to 3.6V
2.0
V
IL
LOW level Input voltage
V
CC
= 1.2V
GND
V
V
CC
= 2.7 to 3.6V
0.8
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= –12mA
V
CC
0.5
V
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= –100
μ
A
V
CC
0.2
V
CC
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –18mA
V
CC
0.6
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –24mA
V
CC
0.8
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
0.40
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
μ
A
0.20
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
0.55
I
I
Input leakage current
V
CC
= 3 6V; V = 5 5V or GND
I
= 5.5V or GND
0 1
0.1
5
μ
A
I
OZ
3-State output OFF-state current
7
V
CC
= 3.6V; V
I
= V
IH
or V
IL
; V
O
= 5.5V or GND
0.1
5
μ
A
I
off
Power off leakage supply
V
CC
= 0.0V; V
I
or V
O
= 5.5V
0.1
10
μ
A
I
CC
Quiescent supply current
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
0.1
20
μ
A
I
CC
Additional quiescent supply current
per input pin
V
CC
= 2.7V to 3.6V; V
I
= V
CC
–0.6V; I
O
= 0
5
500
μ
A
I
BHL
Bus hold LOW sustaining current
V
CC
= 3.0V; V
I
= 0.8V
2, 3, 4
V
CC
= 3.0V; V
I
= 2.0V
2, 3, 4
V
CC
= 3.6V
2, 3, 5
V
CC
= 3.6V
2, 3, 5
75
μ
A
I
BHH
Bus hold HIGH sustaining current
–75
μ
A
I
BHLO
Bus hold LOW overdrive current
500
μ
A
I
BHHO
Bus hold HIGH overdrive current
–500
μ
A
NOTES:
1. All typical values are at V
= 3.3V and T
= 25
°
C.
2. Valid for data inputs of bus hold parts (LVCH16-A) only.
3. For data inputs only, control inputs do not have a bus hold circuit.
4. The specified sustaining current at the data input holds the input below the specified V
I
level.
5. The specified overdrive current at the data input forces the data input to the opposite logic input state.
6. For bus hold parts, the bus hold circuit is switched off when V
i
exceeds V
CC
allowing 5.5V on the input terminal.
7. For I/O ports the parameter I
OZ
includes the input leakage current.
AC CHARACTERISTICS
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF; R
L
= 500
; T
amb
= –40
°
C to +85
°
C.
LIMITS
V
CC
= 2.7V
MIN
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
±
0.3V
MIN
TYP
1
V
CC
= 1.2V
TYP
UNIT
MAX
MAX
t
PHL
t
PLH
Propagation delay
nAn to nBn;
nBn to nAn
3-State output enable time
nOE to nAn;
nOE to nBn
3-State output disable time
nOE to nAn;
nOE to nBn
1
1.5
3
4.5
1.5
5.5
13
ns
t
PZH
t
PZL
2, 3
1.5
4
6.1
1.5
7.1
15
ns
t
PHZ
t
PLZ
2, 3
1.5
4
5.6
1.5
6.6
11
ns
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
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