TMS320F28335, TMS320F28334, TMS320F28332
TMS320F28235, TMS320F28234, TMS320F28232
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SPRS439I–JUNE 2007–REVISED MARCH 2011
6.17 Flash Timing
Table 6-65. Flash Endurance for A and S Temperature Material(1)
ERASE/PROGRAM
TEMPERATURE
MIN
TYP
MAX
UNIT
Nf
Flash endurance for the array (write/erase cycles)
OTP endurance for the array (write cycles)
0°C to 85°C (ambient)
0°C to 85°C (ambient)
20000
50000
cycles
write
NOTP
1
(1) Write/erase operations outside of the temperature ranges indicated are not specified and may affect the endurance numbers.
Table 6-66. Flash Endurance for Q Temperature Material(1)
ERASE/PROGRAM
MIN
TYP
MAX
UNIT
TEMPERATURE
Nf
Flash endurance for the array (write/erase cycles)
OTP endurance for the array (write cycles)
–40°C to 125°C (ambient)
–40°C to 125°C (ambient)
20000
50000
cycles
write
NOTP
1
(1) Write/erase operations outside of the temperature ranges indicated are not specified and may affect the endurance numbers.
Table 6-67. Flash Parameters at 150-MHz SYSCLKOUT
TEST
CONDITIONS
PARAMETER
MIN
TYP
MAX
UNIT
Program Time 16-Bit Word
32K Sector
50
1000
500
2
μs
ms
ms
s
16K Sector
Erase Time
32K Sector
16K Sector
2
s
(1)
IDD3VFLP
VDD3VFL current consumption during the Erase/Program Erase
cycle
75
mA
mA
mA
mA
Program
35
(1)
IDDP
VDD current consumption during Erase/Program cycle
VDDIO current consumption during Erase/Program cycle
180
20
(1)
IDDIOP
(1) Typical parameters as seen at room temperature including function call overhead, with all peripherals off.
Table 6-68. Flash/OTP Access Timing
PARAMETER
MIN
MAX UNIT
ta(fp)
Paged Flash access time
Random Flash access time
OTP access time
37
37
60
ns
ns
ns
ta(fr)
ta(OTP)
Table 6-69. Minimum Required Flash/OTP Wait-States at Different Frequencies
RANDOM
SYSCLKOUT (MHz)
SYSCLKOUT (ns)
PAGE WAIT-STATE
OTP WAIT-STATE
WAIT-STATE(1)
150
120
100
75
6.67
8.33
10
5
4
3
2
1
1
1
1
1
5
4
3
2
1
1
1
1
1
8
7
5
4
2
1
1
1
1
13.33
20
50
30
33.33
40
25
15
66.67
250
4
(1) Page and random wait-state must be ≥ 1.
Copyright © 2007–2011, Texas Instruments Incorporated
Electrical Specifications
181
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