Datasheet > SNC26020

SNC26020

更新时间： 2022-09-26 17:25:06

品牌	Logo	应用领域
松翰 - SONIX		控制器
页数	文件大小	规格书
11页	145K
描述
One Channel Speech Controller

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数据手册

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SNC26020 数据手册

SNC26020

One Channel Speech Controller

5.7 PWM Output

An PWM circuit is built-in SNC26020. The maximum resolution of PWM is 8 bits.

Two huge output stage circuits are designed in SNC26020. With this advanced

circuit, the chip is capable of driving speaker directly without external transistors.

BUO1

BUO2

PWM Output

5.8 Watch Dog Timer

SNC26020 built an internal WDT (Watch Dog Timer). This Watchdog timer would

issue resets signal to this chip if it is not cleared before reaching terminal count (128

ms). The watchdog timer is enabled at reset and cannot be disabled.

5.9 IR Function

P23 can be modulated with 38.5KHz square wave before sent out to P23 pin.

The IR signal can be achieved by this modulated signal.

5.10

PWM IO control

SNC26020 has support 8 PWM IO (P20~P23, P30~P33). Each I/O has 8 bit

independent duty register, and the 8 bit register are compare with 8 bits counter. If set

use PWM IO function and internal counter start at 000H, the mapping I/O will set High.

The 8 bits counter increment if the same duty register, that will reset the mapping IO

pin.

6. ABSOLUTE MAXIMUM RATING

Items

Symbol

V_DD-V

V_IN

Min

-0.3

Max

6.0

Unit.

Supply Voltage

Input Voltage

V_SS-0.3

V_DD+0.3

55.0

Operating Temperature

Storage Temperature

T_OP

^oC

T_STG

-55.0

125.0

Ver: 1.7

October 14, 2009

1...4 5 678 9 10 11

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