參數(shù)資料
型號: P89C669BBD
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 80C51 8-bit microcontroller family with extended memory 96 kB Flash with 2 kB RAM
中文描述: 8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-389-1, LQFP-44
文件頁數(shù): 10/33頁
文件大?。?/td> 827K
代理商: P89C669BBD
Philips Semiconductors
P89C669
80C51 8-bit microcontroller family with extended memory
Product data
Rev. 02 — 13 November 2003
10 of 33
9397 750 12299
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
XTAL2
V
SS
V
DD
20
22
44
14
16
38
O
I
I
Crystal 2:
Output from the inverting oscillator amplifier.
Ground:
0 V reference.
Power Supply:
This is the power supply voltage for normal operation as well as
Idle and Power-down modes.
No Connect/Ground:
This pin is internally connected to V
SS
on the P89C669. If
connected externally, this pin must only be connected to the same V
SS
as at
pin 22. (Note: Connecting the second pair of V
SS
and V
DD
pins is not required.
However, they may be connected in addition to the primary V
SS
and V
DD
pins to
improve power distribution, reduce noise in output signals, and improve
system-level EMI characteristics.)
No Connect/Power Supply:
This pin is internally connected to V
DD
on the
P89C669. If connected externally, this pin must only be connected to the same
V
DD
as at pin 44. (Note: Connecting the second pair of V
SS
and V
DD
pins is not
required. However, they may be connected in addition to the primary V
SS
and
V
DD
pins to improve power distribution, reduce noise in output signals, and
improve system-level EMI characteristics.)
(NC/V
SS
)
1
39
I
(NC/V
DD
)
23
17
I
Table 3:
Symbol
Pin description
…continued
Pin
PLCC
LQFP
Type
Description
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