參數(shù)資料
型號： 74ABT2952CMSAX
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Single 8-bit Bus Transceiver
中文描述： ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝： 5.30 MM, EIAJ TYPE2, SSOP-24
文件頁數(shù)： 5/12頁
文件大?。?/td> 110K
代理商： 74ABT2952CMSAX
Philips Semiconductors
Product specification
74ABT2952
Octal registered transceiver (3-State)
1998 Feb 11
5
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
= +25
°
C
T
amb
= –40
°
C
to +85
°
C
UNIT
Min
Typ
Max
Min
Max
V
IK
Input clamp voltage
V
CC
= 4.5V; I
IK
= –18mA
–0.9
–1.2
–1.2
V
V
CC
= 4.5V; I
OH
= –3mA; V
I
= V
IL
or V
IH
2.5
3.5
2.5
V
V
OH
High-level output voltage
V
CC
= 5.0V; I
OH
= –3mA; V
I
= V
IL
or V
IH
3.0
4.0
3.0
V
V
CC
= 4.5V; I
OH
= –32mA; V
I
= V
IL
or V
IH
2.0
2.6
2.0
V
V
OL
Low-level output voltage
V
CC
= 4.5V; I
OL
= 64mA; V
I
= V
IL
or V
IH
0.42
0.55
0.55
V
V
RST
Power-up output low
voltage
3
V
CC
= 5.5V; I
O
= 1mA; V
I
= GND or V
CC
0.13
0.55
0.55
V
I
I
Input leakage
Control pins
V
CC
= 5.5V; V
I
= GND or 5.5V
V
CC
= 5.5V; V
I
= GND or 5.5V
±
0.01
±
1.0
±
1.0
μ
A
current
Data pins
5
100
100
μ
A
I
OFF
Power-off leakage current
V
CC
= 0.0V; V
O
= 4.5V; V
I
= 0.0V or 5.5V
±
5.0
±
100
±
100
μ
A
I
PU
/I
PD
Power-up/down 3-State
output current
4
V
CC
= 2.1V; V
O
= 0.5V; V
I
= GND or V
CC
;
V
OE
= Don’t care
±
5.0
±
50
±
50
μ
A
I
OZH
3-State output High current
V
CC
= 5.5V; V
O
= 2.7V; V
I
= V
IL
or V
IH
5.0
50
50
μ
A
I
OZL
3-State output Low current
V
CC
= 5.5V; V
O
= 0.5V; V
I
= V
IL
or V
IH
–5.0
–50
–50
μ
A
I
CEX
Output High leakage current
V
CC
= 5.5V; V
O
= 5.5V; V
I
= GND or V
CC
5.0
50
50
μ
A
I
O
Output current
1
V
CC
= 5.5V; V
O
= 2.5V
–50
–80
–180
–50
–180
mA
I
CCH
V
CC
= 5.5V; Outputs High, V
I
= GND or V
CC
110
250
250
μ
A
I
CCL
Quiescent supply current
V
CC
= 5.5V; Outputs Low, V
I
= GND or V
CC
20
30
30
mA
I
CCZ
V
CC
= 5.5V; Outputs 3-State;
V
I
= GND or V
CC
110
250
250
μ
A
I
CC
Additional supply current per
input pin
2
V
= 5.5V; one input at 3.4V,
other inputs at V
CC
or GND
0.3
1.5
1.5
mA
NOTES:
1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
2. This is the increase in supply current for each input at 3.4V.
3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power.
4. This parameter is valid for any V
CC
between 0V and 2.1V, with a transition time of up to 10msec. From V
CC
= 2.1V to V
CC
= 5V
±
10% a
transition time of up to 100
μ
sec is permitted.
AC CHARACTERISTICS
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF, R
L
= 500
LIMITS
SYMBOL
PARAMETER
WAVEFORM
T
amb
= +25
°
C
V
CC
= +5.0V
T
amb
= –40
°
C to +85
°
C
V
CC
= +5.0V
±
0.5V
UNIT
Min
Typ
Max
Min
Max
f
MAX
Maximum clock frequency
1
150
250
150
MHz
t
PLH
t
PHL
Propagation delay
CPBA to An, CPAB to Bn
1
2.0
2.5
3.2
3.8
6.6
7.2
2.0
2.5
7.6
8.2
ns
t
PZH
t
PZL
Output enable time
OEBA to An, OEAB to Bn
3
4
1.0
2.2
3.2
4.4
4.8
6.2
1.0
2.2
5.8
7.5
ns
t
PHZ
t
PLZ
Output disable time
OEBA to An, OEAB to Bn
3
4
2.0
1.5
3.6
2.8
7.6
7.1
2.0
1.5
8.1
7.6
ns
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