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PIC16C74A-JW

更新时间： 2024-10-04 12:02:35

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
8页	94K
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PIC16C74A Rev. A Silicon Errata Sheet

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PIC16C74A-JW 数据手册

PIC16C74A

PIC16C74A Rev. A Silicon Errata Sheet

The PIC16C74A (Rev. A) parts you have received con-

form functionally to the Device Data Sheet

(DS30390E), except for the anomalies described

below.

TABLE 1:

COMPARE OUTPUT LOW

SWITCHING

Change CCP to

All the problems listed here will be addressed in future

revisions of the PIC16C74A silicon.

CCPxM<3:0> =

CCP Mode

CCPxM<3:0> =

I/O pin

State

1001

1000

1. Module: 8-bit A/D Module

If the Analog Port is configured so that all analog

pins are digital inputs (PCFG2:PCFG0 = 11x),

then doing a conversion on any pin of the analog

port will give a result of ADRES = 0xFF.

0xxx

1000

1001

101x

—

Work around

Configure the PCFG2:PCFG0 bits to a value that

has any pin of the analog port configured as an

analog input (such as PCFG2:PCFG0 = 100).

Conversion on any pin of the analog port (analog

or digital) will now convert as expected.

—

2. Module: CCP (Compare Mode)

The Compare mode may not operate as expected

when configuring the compare match to drive the

I/O pin low (CCPxM<3:0> = 1001).

11xx

When the CCP module is changed to compare

output low (CCPxM<3:0> = 1001) from any other

non-compare CCP mode, the I/O pin will immedi-

ately be driven low, regardless of the state of the

I/O data latch. The pin will remain low when the

compare match occurs (see Table 1).

Work around

To have the I/O pin high until the compare match

low occurs, force a compare match high to get the

I/O pin into the high state, then reconfigure the

compare match to force the I/O low when the com-

pare condition occurs.

However, when the CCP module is changed to

compare output high (CCPxM<3:0> = 1000) from

any other CCP mode, the I/O pin will immediately

be driven low, regardless of the state of the I/O

data latch. The pin will be driven high when the

compare match occurs.

 2001 Microchip Technology Inc.

DS80089A-page 1

12 3 4 5 6 7 8

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与PIC16C74A-JW相关器件

型号	品牌	获取价格	描述	数据表
PIC16C74AT-04/L	MICROCHIP	获取价格	8-BIT, MROM, 4 MHz, RISC MICROCONTROLLER, PQCC44, PLASTIC, LCC-44
PIC16C74AT-04I/TQ	MICROCHIP	获取价格	8-BIT, MROM, 4 MHz, RISC MICROCONTROLLER, PQFP44, 10 X 10 MM, 1 MM HEIGHT, PLASTIC, MS-026
PIC16C74AT-10/PQ	MICROCHIP	获取价格	8-BIT, MROM, 10 MHz, RISC MICROCONTROLLER, PQFP44, 10 X 10 MM, PLASTIC, MQFP-44
PIC16C74AT-10E/L	MICROCHIP	获取价格	8-BIT, MROM, 10 MHz, RISC MICROCONTROLLER, PQCC44, PLASTIC, LCC-44
PIC16C74AT-10E/PQ	MICROCHIP	获取价格	8-BIT, MROM, 10 MHz, RISC MICROCONTROLLER, PQFP44, 10 X 10 MM, PLASTIC, MQFP-44
PIC16C74AT-10I/PQ	MICROCHIP	获取价格	8-BIT, MROM, 10 MHz, RISC MICROCONTROLLER, PQFP44, 10 X 10 MM, PLASTIC, MQFP-44
PIC16C74AT-20/L	MICROCHIP	获取价格	8-BIT, MROM, 20 MHz, RISC MICROCONTROLLER, PQCC44, PLASTIC, LCC-44
PIC16C74AT-20/PQ	MICROCHIP	获取价格	8-BIT, MROM, 20 MHz, RISC MICROCONTROLLER, PQFP44, 10 X 10 MM, PLASTIC, MQFP-44
PIC16C74AT-20/TQ	MICROCHIP	获取价格	8-BIT, MROM, 20 MHz, RISC MICROCONTROLLER, PQFP44, 10 X 10 MM, 1 MM HEIGHT, PLASTIC, MS-02
PIC16C74AT-20E/TQ	MICROCHIP	获取价格	8-BIT, MROM, 20 MHz, RISC MICROCONTROLLER, PQFP44, 10 X 10 MM, 1 MM HEIGHT, PLASTIC, MS-02

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