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參數(shù)資料
| 型號： | M39432 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Single Chip 4Mbit Flash and 256Kbit Parallel EEPROM Memory(單片4Mb閃速和256Kb并行EEPROM) |
| 中文描述： | 單芯片的4Mb并行閃存和256Kbit EEPROM存儲器（單片4Mb的閃速和256Kb的并行的EEPROM） |
| 文件頁數(shù)： | 15/30頁 |
| 文件大?。?/td> | 247K |
| 代理商： | M39432 |
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This allows a guarantee of the retention of the
Protection status.
Remarks:
– The Verify operation is a read with a simulated
worst case conditions. This allows a guarantee
of the retention of the Protection status
– During the application life, the Sector protection
status can be accessed with a regular Read
instruction without "high voltage" V
ID
on A9. This
instruction is detailed in Table 4.
Reset Instruction.
The Reset instruction resets
the device internal logic in a few
μ
s. Reset is an
instruction of either one write operation or three
write operations (refer to Table 4).
Supply Rails.
Normal precautions must be taken
for supply voltage decoupling, each device in a
system should have the V
CC
rail decoupled with a
0.1
μ
F capacitor close to the V
CC
and V
SS
pins. The
printed circuit board trace width should be sufficient
to carry the V
CC
program and erase currents re-
quired.
GLOSSARY
Block:
EEPROM block (256 Kbit) or Flash block
(4Mbit)
Bulk:
the whole Flash block (4Mbit)
Sector:
64 Kbyte of Flash memory
Page:
64 bytes of EEPROM
Write and Program:
Writing (into the EEPROM
block) and Programming (the Flash block) is not
performed in a similar way:
– the Flash memory requires an instruction (see
Instruction chapter) for Erasing and another in-
struction for Programming one (or more) byte(s)
– the EEPROM memory is directly written with a
simple operation (see Operation chapter).
SDP:
Software Data Protection. Used for protect-
ing the EEPROM block against false Write opera-
tions (as in noisy environments).
AI01950
1.5V
2.4V
0.45V
Figure 10. AC Testing Input Output Waveform
AI01951
VCC
CL = 100pF
CL includes JIG capacitance
VOUT = 1.5V when the DEVICE
UNDER TEST is in the
Hi-Z output state.
1N914
DEVICE
UNDER
TEST
1N914
IOL
IOH
Figure 11. Output AC Testing Load Circuit
Symbol
Parameter
Test Condition
Min
Max
Unit
C
IN
Input Capacitance
V
IN
= 0V
6
pF
C
OUT
Output Capacitance
V
OUT
= 0V
12
pF
Note:
1. Sampled only, not 100% tested.
Table 11. Capacitance
(1)
(T
A
= 25
°
C, f = 1 MHz )
Input Rise and Fall Times
≤
10ns
Input Pulse Voltages
0.45V to 2.4V
Input Timing Ref. Voltages
0.8V and 2V
Output Timing Ref. Voltages
1.5V
Table 10. AC Measurement Conditions
FLASH BLOCK SPECIFIC FEATURES
(cont’ d)
15/30
M39432
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M39432-10VNC6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single Chip 4 Mbit Flash Memory and 256 Kbit Parallel EEPROM |
| M39432-10WNC6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single Chip 4 Mbit Flash Memory and 256 Kbit Parallel EEPROM |
| M39432-12VNC6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single Chip 4 Mbit Flash Memory and 256 Kbit Parallel EEPROM |
| M39432-12WNC6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single Chip 4 Mbit Flash Memory and 256 Kbit Parallel EEPROM |
| M39432-15VNC6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single Chip 4 Mbit Flash Memory and 256 Kbit Parallel EEPROM |
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