參數(shù)資料
型號(hào)： 935192630112
廠商： NXP SEMICONDUCTORS
元件分類： 總線收發(fā)器
英文描述： ABT SERIES, OCTAL 1-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝： 7.50 MM, PLASTIC, MS-013AD, SOT-137-1, SO-24
文件頁數(shù)： 12/14頁
文件大?。?/td> 128K
代理商： 935192630112
Philips Semiconductors
Product specification
74ABT646A
Octal bus transceiver/register (3-State)
1998 Feb 17
7
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500
LIMITS
SYMBOL
PARAMETER
WAVEFORM
Tamb = +25oC
VCC = +5.0V
Tamb = -40 to
+85oC
VCC = +5.0V ±0.5V
UNIT
Min
Typ
Max
Min
Max
fMAX
Maximum clock frequency
1
125
350
125
MHz
tPLH
tPHL
Propagation delay
CPAB to Bn or CPBA to An
1
2.2
1.7
3.9
4.4
5.1
5.21
2.2
1.7
5.6
ns
tPLH
tPHL
Propagation delay
An to Bn or Bn to An
2
1.5
3.2
3.7
4.3
4.6
1.5
4.8
5.4
ns
tPLH
tPHL
Propagation delay
SAB to Bn or SBA to An
2
3
1.5
3.8
4.4
5.1
5.31
1.5
6.5
5.9
ns
tPZH
tPZL
Output enable time
OE to An or Bn
5
6
1.5
3.0
3.5
4.5
5.3
7.4
1.5
3.0
6.3
8.8
ns
tPHZ1
tPLZ
Output disable time
OE to An or Bn
5
6
1.5
4.0
3.3
4.81
4.0
1.5
5.31
4.5
ns
tPZH
tPZL
Output enable time
DIR to An or Bn
5
6
1.5
2.5
3.9
4.7
5.7
9.0
1.2
2.5
6.7
9.5
ns
tPHZ
tPLZ
Output disable time
DIR to An or Bn
5
6
1.5
4.0
3.5
5.0
4.7
1.5
5.7
6.0
ns
1. This data sheet limit may vary among suppliers.
AC SETUP REQUIREMENTS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500
LIMITS
SYMBOL
PARAMETER
WAVEFORM
Tamb = +25oC
VCC = +5.0V
Tamb = -40 to +85oC
VCC = +5.0V ±0.5V
UNIT
Min
Typ
Min
ts(H)
ts(L)
Setup time
An to CPAB, Bn to CPBA
4
3.0
0.7
3.0
ns
th(H)
th(L)
Hold time
An to CPAB, Bn to CPBA
4
0.0
–0.5
0.0
ns
tw(H)
tw(L)
Pulse width, High or Low
CPAB or CPBA
1
4.0
0.9
1.4
4.0
ns
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