SH7146 Datasheet, PDF (976/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 24 Electrical Characteristics
24.5 Flash Memory Characteristics
Table 24.17 Flash Memory Characteristics
Conditions: V_CC = 4.0 V to 5.5 V, AV_CC = 4.0 V to 5.5 V, V_SS = PLLV_SS = AV_SS = 0 V,
T_a = –20°C to +85°C (consumer applications)*⁵,
T_a = –40°C to +85°C (industrial applications)
Item
Symbol
Min.
Typ.
Max.
Unit
Programming time*¹*²*⁴
t
P
Erase time*¹*²*⁴
t_E
—
1
10
ms/128 bytes
—
30
100
ms/4-Kbyte
block
—
250
800
ms/32-Kbyte
block
—
500
1600
ms/64-Kbyte
block
Programming time
Σt
—
2.5
7
s/256 Kbytes
P
(total)*¹*²*⁴
Erase time (total)*¹*²*⁴
Σt
E
Programming and erase time Σt_PE
(total)*¹*²*⁴
—
2.5
7
—
5
14
s/256 Kbytes
s/256 Kbytes
Reprogramming count
N_WEC
100*³
—
—
Times
Notes: 1. Programming and erase time vary depending on the data.
2. Programming and erase time do not include data transfer time.
3. The minimum number of times for which all characteristics are guaranteed after
reprogramming (guaranteed for once to the minimum number of reprogramming times).
4. These characteristics only apply when reprogramming is performed within the range of
minimum number of times.
5. –20°C to +75°C for SH71491.
Rev. 3.00 May 17, 2007 Page 932 of 974
REJ09B0229-0300