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参数资料
| 型号： | M37512FCHP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件页数： | 72/89页 |
| 文件大小： | 877K |
| 代理商： | M37512FCHP |
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Feb 18, 2005
page 72 of 85
REJ03B0122-0101
7512 Group
Electrical characteristics for Flash ROM E/W Cycles
Table 18 Characteristics (Note 1) for 100 E/W cycle products
(VCC = 2.5V±2%, Ta = 0 to 60 oC, unless otherwise noted)
Erase/Write cycle (Note 3)
Byte write time
Block erase time
2Kbyte block
8Kbyte block
16Kbyte block
Time delay from Suspend Request until Erase Suspend
Data retention time (Note 5)
Limits
Parameter
Min.
Typ.
(Note 2)
Max.
Symbol
VCC=2.5V, Ta=25°C
Condition
—
td(SR–ES)
—
100 (Note 4)
20
75
0.2
0.4
0.7
600
9
8
cycle
s
ms
year
Erase/Write cycle (Note 3, 8, 9)
Byte write time
Block erase time (2Kbyte block)
Time delay from Suspend Request until Erase Suspend
Limits
Parameter
Min.
Typ.
(Note 2)
Max.
Symbol
Unit
VCC=2.5V, Ta=25°C
Condition
—
td(SR–ES)
1000 (Note 4)
100
0.3
8
cycle
s
ms
Table 19 Characteristics (Note 6) for 1000 E/W cycle products [Block A and Block B (Note 7)]
(VCC = 2.5V±2%, Ta = –20 to 85 oC, unless otherwise noted)
Notes 1: Specified for all blocks.
2: VCC=2.5V; Ta=25°C.
3: Definition of E/W cycle: Each block may be written to a variable number of times - up to a maximum of the total number of distinct byte addresses -
for every block erase. Performing multiple writes to the same address before an erase operation is prohibited.
4: Maximum number of E/W cycles for which operation is guaranteed.
5: At Ta=55°C condition
6: Specified for Block A and Block B E/W cycles > 100
7: To reduce the number of E/W cycles, a block erase should ideally be performed after writing as many different byte addresses (only one time each)
as possible. It is important to track the total number of block erases.
8: Should erase error occur during block erase, attempt to execute clear status register command, then block erase command at least three times un-
til erase error disappears.
9: Customers desiring E/W failure rate information should contact their Renesas technical support representative.
Erase suspend request bit
(Interrupt request)
Erase suspend flag
td(SR-ES)
Fig. 77 The transition of the timing of the erase / erase suspend
Unit
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相关代理商/技术参数 |
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|---|---|
| M37512FCH-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FC-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M-375-1-342 | 制造商:Brady Corporation 功能描述:WIRE MARKER SLEEVES, HEAT-SHRINK, 1.015"W, 80; Marker Material:PO (Polyolefin); Marker Dimensions:16.38mm x 25.78mm; Legend:Blank (No Legend); Legend Color:Black; Background Color:White; Color:Black on White; Series:M ;RoHS Compliant: Yes |
| M37513E1-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37513E2-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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