PSD934210JIT STMICROELECTRONICS [STMicroelectronics], PSD934210JIT Datasheet - Page 77

• Manufacturer Part Number: PSD934210JIT
• Description: Flash PSD, 3.3V Supply, for 8-bit MCUs 2 Mbit 256 Kbit Dual Flash Memories and 64 Kbit SRAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 42. Write Timing
Table 49. Program, Write and Erase Times
Note: 1. Programmed to all zero before erase.
t
t
t
t
t
WHQV3
WHQV2
WHQV1
WHWLO
Q7VQV
Symbol
2. The polling status, DQ7, is valid tQ7VQV time units before the data byte, DQ0-DQ7, is valid for reading.
NON-MULTIPLEXED
NON-MULTIPLEXED
MULTIPLEXED
ADDRESS
Flash Program
Flash Bulk Erase
Flash Bulk Erase (not pre-programmed)
Sector Erase (pre-programmed)
Sector Erase (not pre-programmed)
Byte Program
Program / Erase Cycles (per Sector)
Sector Erase Time-Out
DQ7 Valid to Output (DQ7-DQ0) Valid (Data Polling)
ALE /AS
DATA
BUS
BUS
BUS
R/ W
A/D
(DS)
CSI
WR
E
1
(pre-programmed)
Parameter
t AVLX
t AVPV
ADDRESS
VALID
t SLWL
t AVWL
t LVLX
ADDRESS
t LXAX
VALID
ADDRESS OUT
t THEH
2
t WLWH
100,000
t EHEL
Min.
t WLMV
t DVWH
VALID
VALID
DATA
DATA
t WHPV
Typ.
100
8.5
2.2
14
3
5
1
t WHAX
t WHDX
Max.
1200
30
30
30
t ELTL
MCU I/O OUT
STANDARD
PSD834F2V
AI02896
cycles
Unit
µs
µs
ns
s
s
s
s
s
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