- 您現在的位置：買賣IC網 > PDF目錄385388 > HMS99C52 (Hynix Semiconductor Inc.) 8-BIT SINGLE-CHIP MICROCONTROLLERS PDF資料下載
參數資料
| 型號： | HMS99C52 |
| 廠商： | Hynix Semiconductor Inc. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 8位單晶片微控制器 |
| 文件頁數： | 11/43頁 |
| 文件大小： | 533K |
| 代理商： | HMS99C52 |
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頁第10頁當前第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
HMS99C5X Series
Jan. 2003 Ver 1.0
7
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.
P2.0-P2.7
24-31
21-28
18-25
I/O
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.
PSEN
32
29
26
O
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
10
9
4
I
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
.
Symbol
Pin Number
Input/
Output
Function
PLCC-
44
PDIP-
40
MQFP-
44
相關PDF資料 |
PDF描述 |
|---|---|
| HMS9XC7132 | DATA SHEET REV.2.0(PRELIMINARY) |
| HMU16GC-35 | 16 x 16-Bit CMOS Parallel Multipliers |
| HMU16GC-45 | 16 x 16-Bit CMOS Parallel Multipliers |
| HMU17GC-35 | 16 x 16-Bit CMOS Parallel Multipliers |
| HMU17GC-45 | 16 x 16-Bit CMOS Parallel Multipliers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HMS99C52S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS WITH EMBEDDED FLASH |
| HMS99C54S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS WITH EMBEDDED FLASH |
| HMS99C56S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS WITH EMBEDDED FLASH |
| HMS99C58S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS WITH EMBEDDED FLASH |
| HMS9XC7132 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:8-BIT SINGLE-CHIP MONITOR MICROCONTROLLERS |
發布緊急采購，3分鐘左右您將得到回復。