MB2646 Datasheet, PDF (7/16 Pages) NXP Semiconductors – Dual octal bus transceiver/registers 3-State

Philips Semiconductors Products
Dual octal bus transceiver/registers (3-State)
Product specification
MB2646
AC CHARACTERISTICS
GND = 0V, t_R = t_F = 2.5ns, C_L = 50pF, R_L = 500Ω
SYMBOL
PARAMETER
WAVEFORM
f_MAX
Maximum clock frequency
1
t_PLH
Propagation delay
t_PHL
nCPAB to nBx or nCPBA to nAx
1
t_PLH
Propagation delay
t_PHL
nAx to nBx or nBx to nAx
2
t_PLH
Propagation delay
t_PHL
nSAB to nBx or nSBA to nAx
2, 3
t_PZH
Output enable time
5
t_PZL
nOE to nAx or nBx
6
t_PHZ
Output disable time
5
t_PLZ
nOE to nAx or nBx
6
t_PZH
Output enable time
5
t_PZL
nDIR to nAx or nBx
6
t_PHZ
Output disable time
5
t_PLZ
nDIR to nAx or nBx
6
AC SETUP REQUIREMENTS
GND = 0V, t_R = t_F = 2.5ns, C_L = 50pF, R_L = 500Ω
SYMBOL
PARAMETER
WAVEFORM
t_s(H)
t_s(L)
Setup time
nAx to nCPAB, nBx to nCPBA
4
t_h(H)
t_h(L)
Hold time
nAx to nCPAB, nBx to nCPBA
4
t_w(H)
t_w(L)
Pulse width, High or Low
nCPAB or nCPBA
1
LIMITS
T_amb = +25^oC
V_CC = +5.0V
MIN
TYP
MAX
130
190
2.2
3.9
5.1
2.4
4.6
5.4
1.5
3.1
4.3
1.5
3.3
4.5
1.5
3.7
4.8
1.8
3.9
4.9
1.5
3.5
4.8
2.1
4.4
5.6
2.1
3.8
5.0
1.5
3.1
4.2
1.5
4.2
5.4
2.3
4.9
6.2
2.1
3.8
5.0
1.5
3.2
4.3
T_amb = -40 to
+85^oC
V_CC = +5.0V ±0.5V
MIN
MAX
130
2.2
5.6
2.4
5.9
1.5
4.8
1.5
5.0
1.5
5.5
1.8
5.6
1.5
5.6
2.1
6.4
2.1
5.7
1.5
4.7
1.5
6.2
2.3
6.9
2.1
5.7
1.5
5.0
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
T_amb = +25^oC
V_CC = +5.0V
MIN
TYP
2.0
0.7
1.5
0.0
1.5
0.0
1.0
–0.7
4.5
2.5
3.0
2.0
LIMITS
T_amb = -40 to +85^oC
V_CC = +5.0V ±0.5V
MIN
2.0
1.5
1.5
1.0
4.5
3.0
UNIT
ns
ns
ns
August 23, 1993
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