HD64F3437TF16 Datasheet, PDF (454/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Table 19.16 AC Characteristics in Writer Mode
(Conditions: V_CC = 5.0 V ±10%, V_PP = 12.0 V ±0.6 V, V_SS = 0 V, T_a = 25°C ±5°C)
Item
Symbol Min Typ Max Unit Test Conditions
Command write cycle
Address setup time
Address hold time
t _CWC
120 — — ns Figure 19.17
t _AS
0
— — ns ^{Figure 19.18*}
Figure 19.19
t _AH
60 — — ns
Data setup time
t _DS
50 — — ns
Data hold time
t _DH
10 — — ns
CE setup time
t _CES
0
— — ns
CE hold time
t _CEH
0
— — ns
V_PP setup time
t _VPS
100 — — ns
V_PP hold time
t _VPH
100 — — ns
WE programming pulse width
t _WEP
70 — — ns
WE programming pulse high time
t _WEH
40 — — ns
OE setup time before command write t_OEWS
0
— — ns
OE setup time before verify
t _OERS
6
— — µs
Verify access time
t _VA
— — 500 ns
OE setup time before status polling t_OEPS
120 — — ns
Status polling access time
t _SPA
— — 120 ns
Program wait time
t _PPW
25 — — ns
Erase wait time
t _ET
9
— 11 ms
Output disable time
t _DF
0
— 40 ns
Total auto-erase time
t _AET
0.5 — 30 s
Note: CE, OE, and WE should be high during transitions of V_PP from 5 V to 12 V and from 12 V to
5 V.
* Input pulse level: 0.45 V to 2.4 V
Input rise time and fall time ≤ 10 ns
Timing reference levels: 0.8 V and 2.0 V for input; 0.8 V and 2.0 V for output
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