- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369689 > GMS90L51 8-Bit CMOS Microcontrollers(高性價(jià)比的51單片機(jī)，片內(nèi)4KROM,128字節(jié)RAM,低電壓) PDF資料下載
參數(shù)資料
| 型號(hào)： | GMS90L51 |
| 英文描述： | 8-Bit CMOS Microcontrollers(高性價(jià)比的51單片機(jī)，片內(nèi)4KROM,128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)4KROM，128字節(jié)的RAM，低電壓） |
| 文件頁數(shù)： | 10/59頁 |
| 文件大?。?/td> | 812K |
| 代理商： | GMS90L51 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當(dāng)前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁
Symbol
Pin Number
P-DIP-40
Input/
Output
Function
P-LCC-44
P-MQFP-44
XTAL1
21
19
15
I
XTAL1
Input to the inverting oscillator amplifier and input to
the internal clock generator circuits.
To drive the device from an external clock source,
XTAL1 should be driven, while XTAL2 is left
unconnected. There are no requirements on the duty
cycle of the external clock signal, since the input to the
internal clocking circuitry is divided down by a
divide-by-two flip-flop. Minimum and maximum high
and low times as well as rise fall times specified in the
AC characteristics must be observed.
Port 2
Port 2 is an 8-bit bidirectional I/O port with internal
pull-ups. Port 2 pins that have 1s written to them are
pulled high by the internal pull-up resistors and can be
used as inputs. As inputs, port 2 pins that are
externally pulled low will source current because of the
pulls-ups (
I
IL
, in the DC characteristics).Port 2 emits
the high-order address byte during fetches from
external program memory and during accesses to
external data memory that use 16-bit
addresses(MOVX @DPTR). In this application it uses
strong internal pull-ups when emitting 1s. During
accesses to external data memory that use 8-bit
addresses (MOVX @Ri), port 2 emits the contents of
the P2 special function register.
The Program Store Enable
The read strobe to external program memory when the
device is executing code from the external program
memory. PSEN is activated twice each machine cycle,
except that two PSEN activations are skipped during
each access to external data memory. PSEN is not
activated during fetches from internal program
memory.
RESET
A high level on this pin for two machine cycles while
the oscillator is running resets the device. An internal
diffused resistor to
V
SS
permits power-on reset using
only an external capacitor to
V
CC.
P2.0 - P2.7
24-31
21-28
18-25
I/O
PSEN
32
29
26
O
RESET
10
9
4
I
GMS90 Series
8-Bit CMOS Microcontroller
LG Semicon MCU
10
MAY. 1998
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GMS90L52 | 8-BIT SINGLE CHIP MICROCONTROLLERS |
| GMS90L54 | 8-Bit CMOS Microcontroller(8位CMOS 微控制器) |
| GMS90L56 | 8-Bit CMOS Microcontroller(8位CMOS 微控制器) |
| GMS90L58 | 8-Bit CMOS Microcontroller(8位CMOS 微控制器) |
| GMS97C51 | 8-Bit CMOS Microcontrollers(高性價(jià)比的51單片機(jī)，片內(nèi)4KEPROM,128字節(jié)RAM,工作電壓5V) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GMS90L52 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS90L54 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS90L56 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS90L58 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| GMS97C1051 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:8-Bit CMOS Microcontorller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。