HD6433937 Datasheet, PDF (138/521 Pages) Hitachi Semiconductor – Hardware Manual

Table 6-5 AC Characteristics
(Conditions: V_CC = 6.0 V ±0.25 V, V_PP = 12.5 V ±0.3 V, T_a = 25°C ±5°C)
Item
Symbol Min Typ Max Unit Test Condition
Address setup time
OE setup time
t _AS
2
— — µs Figure 6-5*¹
t _OES
2 — — µs
Data setup time
t _DS
2 — — µs
Address hold time
t _AH
0 — — µs
Data hold time
Data output disable time
t _DH
t _DF * ²
2 — — µs
— — 130 µs
V_PP setup time
t _VPS
2 — — µs
Programming pulse width
PGM pulse width for overwrite programming
CE setup time
t _PW
t _OPW* ³
t _CES
0.19 0.20 0.21 ms
0.19 — 5.25 ms
2 — — µs
V_CC setup time
t _VCS
2 — — µs
Data output delay time
t _OE
0 — 200 ns
Notes: 1. Input pulse level: 0.45 V to 2.4 V
Input rise time/fall time ≤ 20 ns
Timing reference levels Input: 0.8 V, 2.0 V
Output: 0.8 V, 2.0 V
2. t_DF is defined at the point at which the output is floating and the output level cannot be
read.
3. t_OPW is defined by the value given in figure 6-4, High-Speed, High-Reliability
Programming Flow Chart.
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