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參數(shù)資料
| 型號： | PCD3349A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontroller with DTMF generator(帶DTMF發(fā)生器的8位微控制器) |
| 中文描述： | 8位微控制器的DTMF發(fā)生器（帶雙音多頻發(fā)生器的8位微控制器） |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 141K |
| 代理商： | PCD3349A |
1998 May 11
9
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
7
TIMING
Although the PCD3349A operates over a clock frequency
range from 1 to 16 MHz, f
xtal
= 3.58 MHz will usually be
chosen to take full advantage of the frequency generator
section.
8
RESET
In addition to the conditions given in the “PCD33xxA
Family”data sheet, all derivative registers are cleared in
the RESET state.
9
STOP MODE
Since the oscillator is switched off, the frequency
generator receives no clock. It is suggested to clear both
the HGF and LGF registers before entering Stop mode.
This will cut-off the biasing of the internal amplifiers,
considerably reducing current requirements.
10 IDLE MODE
In the Idle mode, the frequency generator remains
operative.
11 INSTRUCTION SET RESTRICTIONS
Since no serial I/O interface is provided, the serial I/O
(Input/Output) instructions are not available. ‘MOV Dx, A’
is the only applicable derivative instruction because the
derivative registers are write-only.
ROM space being restricted to 4 kbytes, SEL MB2/3 would
define non-existing Program Memory banks and should
therefore be avoided.
RAM space being restricted to 224 bytes, care should be
taken to avoid accesses to non-existing RAM locations.
12 SUMMARY OF MASK OPTIONS
Table 7
Port mask options
Notes
1.
Port output drives:
a) Option 1: standard I/O.
b) Option 2: open-drain I/O.
c) Option 3: push-pull output; see “PCD33xxA Family”data sheet.
Port state after reset: S = Set (HIGH) and R = Reset (LOW).
2.
Table 8
Mask options
PORT NAME
PORT OUTPUT DRIVE
(1)
PORT STATE AFTER RESET
(2)
OPTION 1
OPTION 2
OPTION 3
SET
RESET
Port 0 (P0.0 to P0.7)
Port 1 (P1.0 to P1.7)
Port 2 (P2.0 to P2.7)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
FEATURE
DESCRIPTION
ROM code: program/data
Power-on-reset voltage level: V
POR
Oscillator transconductance: g
m
Any mix of instructions and data up to ROM size of 4 kbytes.
1.2 to 3.6 V in increments of 100 mV; OFF
LOW transconductance: g
mL
MEDIUM transconductance: g
mM
HIGH transconductance: g
mH
相關PDF資料 |
PDF描述 |
|---|---|
| PCD3349 | MINIATURE POWER RELAY |
| PCD3349AP | 8-bit microcontroller with DTMF generator |
| PCD3350AH | 8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| PCD3350A | 8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| PCD3353AH | 8-bit microcontrollers with DTMF generator and 128 bytes EEPROM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCD3349AP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-BIT MICROCONTROLLER WITH DTMF GENERATOR |
| PCD3349AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-BIT MICROCONTROLLER WITH DTMF GENERATOR |
| PCD3350A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| PCD3350AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| PCD3351A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with DTMF generator and 128 bytes EEPROM |
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