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PDF N79E854A Data sheet ( Hoja de datos )
| Número de pieza | N79E854A | |
| Descripción | 8-bit Microcontroller | |
| Fabricantes | Nuvoton | |
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Nuvoton 8-bit Microcontroller
N79E855A
N79E854A
N79E853A
Datasheet
Version: A1.0
1 page  
Preliminary N79E855A_854A_853A Data sheet
1 Description
The N79E855 series are the 8-bit Turbo 51 (4T Mode) microcontrollers embedded with 16K[1]/8K/4K Flash
EPROM which can be programmed through universal hardware writer, serial ICP (In Circuit Program) pro-
grammer, software ISP function. The instruction sets of the N79E855 series are fully compatible with the stan-
dard 8052. The N79E855 series contain a 16K/8K/4K bytes of Application Flash EPROM (APROM) memory,
4K bytes Data Flash memory and 2K bytes Load Flash EPROM (LDROM) memory; a 256 bytes of direct and
indirect RAM, 256 bytes MOVX RAM;25 I/O with bit-addressable I/O ports; two 16-bit timer/counters; 8-channel
multiplexed 10-bit A/D convert; 4-channel 10-bit PWM; three serial ports that includes a SPI, an I2C and an
enhanced full duplex serial port; 2-level BOD voltage detection/reset, and power-on reset(POR). The N79E855
series also supports internal RC oscillator at the nominal frequency of 22.1184MHz with ±1% accuracy by fac-
tory trimming mechanism. These peripherals are supported by 16 sources of four-level interrupt capability. To
facilitate programming and verification, the Flash EPROM inside the N79E855 series allow the program mem-
ory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for
security.
N79E855 microcontroller series, feature wide operating voltage range, built-in rich analog and digital peripher-
als and nonvolatile Flash memory, are widely suit for general control applications, DC/BLDC motor driving sys-
tem and home appliance.
[1] For N79E855, Data Flash and APROM share 16k-byte space.
Publication Release Date: May 12, 2011
- 5 - Revision: A1.0
5 Page 
Preliminary N79E855A_854A_853A Data sheet
Table 5–1. Pin Description
Pin number
SSOP28
TSSOP28
21
7
6
3
26
25
24
23
22
20
19
Symbol
1
VDD
VSS
/RST
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
PWM3
PWM0
BRAKE
T1
Alternate Function
23
Type[1]
Description
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
P
POWER SUPPLY: Supply voltage VDD for op-
eration.
P GROUND: Ground potential.
I RESET: Chip reset pin, it is Low active.
(ST)
KB0 SPICLK I/O PORT0: Port 0 has 4-type I/O port. Its multifunc-
tion pins are for PWM0, PWM3, T1, BRAKE,
KB1 I/O SPICLK, ADC0~ADC6 and KB0~KB7.
KB2 I/O ADC0 ~ADC6: ADC channel input.
KB3 I/O KB0 ~ KB7: Key Board Input
KB4
The PWM0 and PWM3 are PWM output channel
I/O
T1: Timer 1 External Input
KB5 I/O
SPICLK: SPI-1 clock pin
KB6 I/O
KB7 IC1 I/O
18
P1.0
TXD
17
P1.1
RXD
I/O PORT1: Port 1 has 4-type I/O port. Its multifunc-
tion pins are for TXD, RXD, T0, /INT0, /INT1,
I/O
SCL, SDA, STADC, ICPDAT, ICPCLK and /SS,
MISO, MOSI.
12
P1.2
T0
SCL IC0
D The TXD and RXD are UART port
11
P1.3
/INT0
SDA
D
The SCL and SDA are I2C function with open-
drain port.
10
P1.4
/INT1 STADC
/SS I/O The ICPDAT and ICPCLK are ICP (In Circuit
Programming) function pin.
5
P1.6
PWM1
ICPDAT MISO
I/O The /SS, MISO, MOSI are SPI-1 function pins.
The PWM1 and PWM2 are PWM output channel
4
P1.7
PWM2
ICPCLK MOSI
T0: Timer 0 External Input
I/O
IC0/1: Input Capture pin
STADC: ADC trigger by external pin
Publication Release Date: May 12, 2011
- 11 -
Revision: A1.0
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet N79E854A.PDF ] | |
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