p87c770aar NXP Semiconductors, p87c770aar Datasheet - Page 67

• Manufacturer Part Number: p87c770aar
• Description: Microcontrollers Ntsc With On-screen Display Closed Caption
• Manufacturer: NXP Semiconductors

Philips Semiconductors
20.5
Table 106 EPROM programming timing
1999 Jun 11
handbook, full pagewidth
t
t
t
t
t
t
t
t
t
t
t
t
su(A)
h(A)
su(OE)
su(CE)
W(P)
su(PV)
h(WE)
su(D)
h(D)
W(OE)
ACC(OE)
OZ
SYMBOL
Microcontrollers for NTSC TVs with On-Screen
Display (OSD) and Closed Caption (CC)
EPROM timing characteristics
(internal signal)
(Ports 0 and 2)
(ALE/PROG)
V PP /EA
address
data I/O
(Port 3)
(P10)
WE
CE
OE
address set-up time
address hold time
output enable set-up time
chip enable set-up time
program pulse width (typically 5 programming pulses)
program voltage set-up time
write enable hold time
data set-up time
data hold time
output enable pulse width
output enable access verify
output to high-impedance verify
t su(CE)
t su(PV)
t su(D)
t su(A)
data in for EPROM
PROGRAMMING
address
Fig.31 EPROM programming timing diagram.
t h(A)
t h(D)
PARAMETER
t W(P)
67
t h(WE)
t su(OE)
t ACC(OE)
VERIFY
MIN.
300
110
20
95
20
92
10
2
2
2
2
2
t W(OE)
data out from EPROM
TYP.
100
122
P8xCx70 family
Product specification
MGR374
MAX.
105
183
t OZ
12.75 V
5 V
UNIT
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s