74abt853db NXP Semiconductors, 74abt853db Datasheet - Page 5

• Manufacturer Part Number: 74abt853db
• Description: 8-bit Transceiver With 9-bit Parity Checker/ Generator And Flag Latch 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
GND = 0V; t
AC SETUP REQUIREMENTS
GND = 0V; t
1995 Sep 06
SYMBOL
SYMBOL
8-bit transceiver with 9-bit parity checker/
generator and flag latch (3-State)
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
h
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PLH
PHL
PLH
PHL
PZH
PHZ
s
h
s
h
w
w
PZL
PLZ
s
(H)
(H)
(H)
(L)
(L)
(L)
(L)
(L)
R
R
= t
= t
Propagation delay
An to Bn or Bn to An
Propagation delay
An to PARITY
Propagation delay
OEA to PARITY
Propagation delay
CLEAR to ERROR
Propagation delay
ENABLE to ERROR
Propagation delay
Bn or PARITY to ERROR
Output enable time
OEA to An or OEB to Bn, PARITY
Output disable time
OEA to An or OEB to Bn, PARITY
Setup time, High or Low
Bn or PARITY to ENABLE
Hold time, High or Low
Bn or PARITY to ENABLE
Setup time, High
CLEAR to ENABLE
Hold time, Low
CLEAR to ENABLE
Pulse width, Low
CLEAR
Pulse width, Low
ENABLE
F
F
= 2.5ns; C
= 2.5ns; C
PARAMETER
PARAMETER
L
L
= 50pF, R
= 50pF, R
L
L
= 500
= 500
WAVEFORMS
WAVEFORMS
1, 4
1, 4
1, 4
2, 5
2, 5
4
3
4
6
6
6
6
3
6
5
Min
1.2
1.0
2.1
2.5
1.8
2.3
1.0
1.8
1.8
2.0
3.0
1.0
2.1
3.1
3.2
MIN
8.5
8.5
0.0
0.0
2.0
3.0
3.5
4.0
T
V
amb
CC
T
V
= +5.0V
amb
= +25
CC
Typ
3.4
2.6
7.4
7.4
6.6
6.7
3.6
3.8
4.5
7.9
9.0
3.2
4.1
5.1
5.6
= +5.0V
= +25
TYP
–3.4
–6.3
–1.6
o
6.5
3.6
1.8
1.0
2.5
C
o
C
LIMITS
LIMITS
Max
10.1
11.5
4.8
4.0
9.5
9.7
8.5
8.6
5.5
5.1
5.8
5.1
5.8
7.3
7.2
T
V
amb
CC
T
= –40 to +85
= +5.0V 10%
V
amb
Min
CC
1.2
1.0
2.1
2.5
1.8
2.3
1.0
1.8
1.8
2.0
3.0
1.0
2.1
3.1
3.2
MIN
8.5
8.5
0.0
0.0
2.0
3.0
3.5
4.0
= –40 to +85
= +5.0V 10%
74ABT853
Product specification
o
Max
10.5
10.0
12.8
C
11.2
11.0
11.7
5.3
4.5
6.2
6.0
6.6
6.2
6.7
7.9
8.1
o
C
UNIT
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns