PIC17LC752-33/PT datasheet, PDF

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PIC17LC752-33/PT: DescriptionHigh-Performance 8-Bit CMOS EPROM Microcontrollers; File Size59KB，4 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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PIC17LC752-33/PT Overview

High-Performance 8-Bit CMOS EPROM Microcontrollers

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PIC17C756

Errata Sheet of Rev. A PIC17C756 Silicon

The PIC17C756 (Rev. A) parts you have received con-

form functionally to the PIC17C75X preliminary data

sheet (DS30264A), except for the following clariﬁca-

tions and corrections.

FIGURE 1:

Error

A/D NON-LINEARITY

1. Module: MSSP

In I

C™ mode, the SSPBUF may receive either all

0’s or all 1’s independent of the data on the SDA

Work around

Both the SMP and CKE bits need to be in the same

state (set or cleared) for proper operation. There is

no possible mode conﬂict since the CKE bit is not

deﬁned for I

C operation.

Codes

-1

NALOG

NPUT

OLTAGE

2. Module: TCON3 Register

Bit 7 of the TCON3 register, which is unimple-

mented, may read a value other then the deﬁned

state of ‘0’.

Work around

Since bit 7 is unimplemented, either ignore this bit,

or read the TCON3 register into a temporary loca-

tion and AND it with the value 7Fh.

Work around

Under either of the following conditions, the device

will retain the

1 LSb maximum error speciﬁca-

tions:

REF

≤

- 0.3V

Device Temperature

≤

25˚C

3. Module: 10-Bit A/D

The least signiﬁcant Analog-to-Digital (A/D) result

codes may be lost when the device operates at a

temperature > 25˚C and the V

REF

- 0.3V.

Figure 1 shows the non-linearity issue.

4. Module: 10-Bit A/D

The presence of code 511 is not guaranteed for

the 10-bit A/D conversion result.

The 10-bit digital result gives 1024 codes (0 to

1023). The 10-bit A/D result is as expected for

codes 0 to 510 and codes 512 to 1023. The analog

value expected as code 511 may be represented

as either code 510, code 511, or code 512. Code

511 is the midpoint of the analog voltage range.

Note:

As with any windowed EPROM device, please cover the window at all times, except when erasing.

C is a trademark of Philips Corporation.

August, 1997 Microchip Technology Inc.

DS30264A/756/E1A2-page 1

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