Hitachi H8/3937 Series Hardware Manual page 138

Table 6-5 AC Characteristics
(Conditions: V = 6.0 V ±0.25 V, V
CC
Item
Address setup time
OE setup time
Data setup time
Address hold time
Data hold time
Data output disable time
V setup time
PP
Programming pulse width
PGM pulse width for overwrite programming
CE setup time
V setup time
CC
Data output delay time
Notes: 1. Input pulse level: 0.45 V to 2.4 V
Input rise time/fall time ≤ 20 ns
Timing reference levels Input:
2. t is defined at the point at which the output is floating and the output level cannot be
DF
read.
3. t is defined by the value given in figure 6-4, High-Speed, High-Reliability
OPW
Programming Flow Chart.
126
= 12.5 V ±0.3 V, T
PP
Symbol Min
t 2
AS
t 2
OES
t 2
DS
t 0
AH
t 2
DH
2
t —
*
DF
t 2
VPS
t 0.19
PW
3
t 0.19
*
OPW
t 2
CES
t 2
VCS
t 0
OE
0.8 V, 2.0 V
Output: 0.8 V, 2.0 V
= 25°C ±5°C)
a
Typ Max Unit Test Condition
— — µs
— — µs
— — µs
— — µs
— — µs
— 130 µs
— — µs
0.20 0.21 ms
— 5.25 ms
— — µs
— — µs
— 200 ns
1
Figure 6-5*