74F646 Datasheet, PDF (11/16 Pages) NXP Semiconductors – Octal transceiver/register, non-inverting 3-State

Philips Semiconductors
Transceivers/registers
Product specification
74F646/A/74F648/A
AC ELECTRICAL CHARACTERISTICS FOR 74F648A
SYMBOL
PARAMETER
f_max
t_PLH
t_PHL
t_PLH
t_PHL
t_PLH
t_PHL
t_PZH
t_PZL
t_PZH
t_PZL
t_PHZ
t_PLZ
t_PHZ
t_PLZ
Maximum clock frequency
Propagation delay
CPAB or CPBA to An or Bn
Propagation delay
An to Bn or Bn to An
Propagation delay
SAB or SBA to An or Bn
Output enable time
OE to An or Bn
Output enable time
DIR to An or Bn
Output disable time
OE to An or Bn
Output disable time
DIR to An or Bn
TEST CONDITION
Waveform 1
Waveform 1
Waveform 3
Waveform 2, 3
Waveform 5
Waveform 6
Waveform 5
Waveform 6
Waveform 5
Waveform 6
Waveform 5
Waveform 6
LIMITS
T_amb = +25°C
V_CC = +5.0V
C_L = 50pF, R_L = 500Ω
T_amb = 0°C to +70°C
V_CC = +5.0V ± 10%
C_L = 50pF, R_L = 500Ω
MIN TYP MAX
MIN
MAX
160 185
135
5.0
7.0
9.5
4.5
10.5
5.5
7.5 10.0
4.5
10.5
2.5
4.5
7.5
2.0
8.5
4.0
6.0
8.5
4.0
9.5
4.0
7.0
9.5
3.5
11.5
4.5
7.0
9.5
4.5
10.0
3.5
6.5 10.0
3.5
11.0
4.5
6.5 10.0
4.0
11.5
3.5
5.5
8.5
3.0
9.0
4.0
6.5
9.5
4.0
10.0
2.5
4.0
6.5
2.0
8.0
4.0
6.5
9.0
3.5
10.0
2.5
5.0
8.5
2.0
9.0
2.5
5.0
8.0
3.5
9.0
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
AC SETUP REQUIREMENTS FOR 74F648A
SYMBOL
PARAMETER
t_su (H)
t_su (L)
t_h (H)
t_h (L)
t_w (H)
t_w (L)
Setup time, high or low
An or Bn to CPAB or CPBA
Hold time, high or low
An or Bn to CPAB or CPBA
Pulse width, high or low
CPAB or CPBA
AC WAVEFORMS
TEST CONDITION
Waveform 4
Waveform 4
Waveform 1
LIMITS
T_amb = +25°C
V_CC = +5.0V
C_L = 50pF, R_L = 500Ω
T_amb = 0°C to +70°C
V_CC = +5.0V ± 10%
C_L = 50pF, R_L = 500Ω
MIN TYP MAX
MIN
MAX
4.0
4.5
4.0
4.5
0
0
0
0
3.5
4.0
3.5
3.5
UNIT
ns
ns
ns
CPBA
or
CPAB
V_M
1/f_max
t_w(H)
V_M
t_PHL
t_w(L)
V_M
t_PLH
An or Bn
V_M
V_M
SF00394
Waveform 1. Propagation delay for clock input to output clock
pulse width, and maximum clock frequency
An or Bn
V_M
t_PHL
V_M
SBA or SAB
t_PLH
Bn or An
V_M
V_M
An or Bn
SF00395
Waveform 2. Propagation delay for An to Bn or Bn to An and
SAB or SBA to An or Bn
1990 Sep 25
11