HD64F3644PV Datasheet, PDF (130/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 6 ROM
Table 6.4 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
tAS
2


µs
Figure 6.4^*1
OE setup time
tOES
2


µs
Data setup time
tDS
2


µs
Address hold time
tAH
0


µs
Data hold time
Data output disable time
tDH
tDF^*2
2


µs
0

130
ns
VPP setup time
tVPS
2


µs
Programming pulse width
CE pulse width for overwrite
programming
tPW
tOPW^*3
0.95 1.0
1.05
ms
2.85 
78.7
ms
VCC setup time
tVCS
2


µs
Data output delay time
tOE
0

500
ns
Notes: 1. Input pulse level: 0.8 V to 2.2 V
Input rise time/fall time ≤ 20 ns
Timing reference levels: Input: 1.0 V, 2.0 V
Output: 0.8 V, 2.0 V
2. tDF is defined at the point at which the output is floating and the output level cannot be
read.
3. tOPW is defined by the value given in figure 6.3, High-Speed, High-Reliability
Programming Flow Chart.
Rev. 6.00 Sep 12, 2006 page 108 of 526
REJ09B0326-0600