str712 STMicroelectronics, str712 Datasheet - Page 46

• Manufacturer Part Number: str712
• Description: 144/64-pin Arm7tdmi Mcu With Up To 256kb Flash, 64kb Ram And Emi
• Manufacturer: STMicroelectronics

Electrical parameters
4.3.3
46/78
Memory characteristics
Flash memory
V
Table 24.
Notes:
1. T
2. Guaranteed by design, not tested in production
N
N
Symbol
33
t
t
t
END_B0
END_B1
t
RPD
PSL
ESL
t
t
t
t
t
PDW
t
t
t
t
ESR
PB0
PB1
RET
PW
= 3.0 to 3.6V, T
ES
ES
ES
ES
A
=45°C after 0 cycles. Guaranteed by characterization, not tested in production.
2)
2)
2)
Word Program
Double Word Program
Bank 0 Program (256K)
Bank 1 Program (16K)
Sector Erase (64K)
Sector Erase (8K)
Bank 0 Erase (256K)
Bank 1 Erase (16K)
Recovery when disabled
Program Suspend Latency
Erase Suspend Latency
Endurance (Bank 0
sectors)
Endurance (Bank 1
sectors)
Data Retention (Bank 0
and Bank 1)
Erase Suspend Rate
Flash memory characteristics
Parameter
A
= -40 to 85 °C unless otherwise specified.
Double Word Program
Double Word Program
Not preprogrammed
Preprogrammed
Not preprogrammed
Preprogrammed
Not preprogrammed
Preprogrammed
Not preprogrammed
Preprogrammed
T
Min time from Erase
Resume to next Erase
Suspend
A
=85°
Test conditions
Min.
100
10
20
20
Value
Typ
130
1.6
1.9
0.7
0.6
8.0
6.6
0.9
0.8
2.3
40
60
Max
13.7
11.2
170
300
2.1
4.0
3.3
1.1
1.0
1.5
1.3
20
10
1)
STR71xF
kcycles
kcycles
Years
ms
Unit
ms
µs
µs
µs
µs
µs
s
s
s
s
s