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| 型號(hào)： | GMS97L52 |
| 英文描述： | 8-Bit CMOS Microcontrollers(高性價(jià)比的51單片機(jī)，片內(nèi)8KEPROM,256字節(jié)RAM,低電壓) |
| 中文描述： | 8位CMOS微控制器（高性價(jià)比的51單片機(jī)，片內(nèi)8KEPROM，256字節(jié)的RAM，低電壓） |
| 文件頁(yè)數(shù)： | 52/59頁(yè) |
| 文件大?。?/td> | 812K |
| 代理商： | GMS97L52 |
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Reading the Signature Bytes :
The GMS97x51/52 signature bytes in locations 030
H
and 031
H
, the GMS97x54/56/58 signature bytes in
locations 030
H
and 060
H
. To read these bytes follow the procedure for EPROM verify, except that P3.6
and P3.7 need to be pulled to a logic low. The values are:
Location
30H
Device
Contents
E0H
All
31H
GMS97C51/L51
73H
GMS97C52/L52
71H
60H
GMS97C54/L54
54H
GMS97C56/L56
56H
GMS97C58/L58
58H
Program / Verify algorithms
Any algorithm in agreement with the conditions listed in Table 11, and which satisfies the timing
specifications is suitable.
Table 11. EPROM programming modes
MODE
RST
PSEN
ALE/PROG
EA/V
PP
P2.7
P2.6
P3.7
P3.6
Read Signature
1
0
1
1
0
0
0
0
Program Code Data
1
0
0
V
PP
1
0
1
1
Verify Code Data
1
0
1
1
0
0
1
1
Program encryption table
1
0
0
V
PP
1
0
1
0
Program security bit 1
1
0
0
V
PP
1
1
1
1
Program security bit 2
1
0
0
V
PP
1
1
0
0
Notes :
1. "0" = Valid low for that pin, "1" = valid high for that pin.
2. Vpp = 12.75V
±
0.25V
3. Vcc = 5V
±
10% during programming and verification.
4. ALE/PROG receives 25 (10 for GMS97x54/56/58) programming pulses while V
PP
is held at 12.75.
Each programming pulse is low for 100us (
±
10us) and high for a minimum of 10us.
GMS90 Series
8-Bit CMOS Microcontroller
LG Semicon MCU
52
MAY. 1998
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GMS97L54 | 8-Bit CMOS Microcontroller(8位CMOS 微控制器) |
| GMS97L56 | 8-Bit CMOS Microcontroller(8位CMOS 微控制器) |
| GMS97L58 | 8-Bit CMOS Microcontroller(8位CMOS 微控制器) |
| GS84018B-150I | x18 Fast Synchronous SRAM |
| GS84018B-150IT | x18 Fast Synchronous SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GMS97L52PL-I | 制造商:HYUNDAI 功能描述:MCS-51 Family MCUs |
| GMS97L52Q | 制造商:HYUNDAI 功能描述:MCS-51 Family MCUs |
| GMS97L54 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97L56 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97L58 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
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