Information

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller SPDIP 28 8-Bit 20 MHz I/O number 22

 2001 Microchip Technology Inc. DS80061C-page 1

PIC16C773

The PIC16C773 (Rev. B) parts you have received con-

form functionally to the Device Data Sheet

(DS30275A), except for the anomalies described

below.

All of the problems listed here will be addressed in

future revisions of the PIC16C773 silicon.

1. Module: VREF

The VRL low voltage reference does not function

properly. The VRLEN (REFCON<6>) and

VRLOEN (REFCON<4>) bits should be main-

tained cleared.

Work around

None.

Date Codes Pertaining To This Issue:

All.

2. Module: BOR

The Brown-Out Reset module’s selection ranges

have changed. Table 1 shows the new specifica-

tions.

Work around

None.

Date Codes Pertaining To This Issue:

All.

TABLE 1: DC SPECIFICATION CHANGES FROM DATA SHEET

Note: When the manufacture date of a newer ver-

sion of silicon is in production, the last date

where this issue may occur will be specified.

Note: When the manufacture date of a newer ver-

sion of silicon is in production, the last date

where this issue may occur will be specified.

Param

No.

Sym. Characteristic

Tested Specification

Data Sheet

Specification

Units

Min Typ Max Min Typ Max

D005 V

BOR BOR Voltage BORV<1:0> = 0100 2.35 — 2.80 2.5 — 2.66 V

BORV<1:0> = 0101 2.55 — 3.02 2.7 — 2.86 V

BORV<1:0> = 0110 3.95 — 4.71 4.2 — 4.46 V

BORV<1:0> = 0111 4.23 — 5.05 4.5 — 4.78 V

PIC16C773 Rev. B Silicon Errata Sheet

Summary of content (16 pages)

PAGE 1
PIC16C773 PIC16C773 Rev. B Silicon Errata Sheet The PIC16C773 (Rev. B) parts you have received conform functionally to the Device Data Sheet (DS30275A), except for the anomalies described below. 2. Module: BOR The Brown-Out Reset module’s selection ranges have changed. Table 1 shows the new specifications. All of the problems listed here will be addressed in future revisions of the PIC16C773 silicon. Work around None. 1.
PAGE 2
PIC16C773 3. Module: LVD The Low Voltage Detect module’s selection ranges have changed. Table 2 shows the new specifications. Work around None. Date Codes Pertaining To This Issue: All. Note: When the manufacture date of a newer version of silicon is in production, the last date where this issue may occur will be specified. TABLE 2: Param No. D420 DC SPECIFICATION CHANGES FROM DATA SHEET Tested Specification Sym.
PAGE 3
PIC16C773 4. Module: Timer1 When Timer1 is running in Asynchronous mode and then disabled, data in the Timer1 register (TMR1) may become corrupted. Corruption occurs when the timer enable is turned off at the same instant that a ripple carry occurs in the timer module. This issue only occurs in asynchronous operation. In synchronous operation, the relevant signals are latched with the CPU clock and the problem condition does not arise. 5.
PAGE 4
PIC16C773 Clarifications/Corrections to the Data Sheet: In the Device Data Sheet (DS30275A), the following clarifications and corrections should be noted. 1. Table 15-1 in the Device Data Sheet (DS30275A) should be omitted. Figure 15-1 and Figure 15-2 below should be used to determine the operating voltages and frequencies for the devices. PIC16C773/774 VOLTAGE-FREQUENCY GRAPH, -40°C ≤ TA ≤ +85°C FIGURE 15-1: 6.0 5.5 5.0 PIC16C77X VDD (Volts) 4.5 4.0 3.5 3.0 2.
PAGE 5
PIC16C773 PIC16C773/774 VOLTAGE-FREQUENCY GRAPH, -40°C ≤ TA ≤ +85°C FIGURE 15-2: 6.0 5.5 5.0 VDD (Volts) 4.5 4.0 PIC16LC77X 3.5 3.0 2.5 0 4 10 20 25 Frequency (MHz) FMAX = (12.0 MHz/V) (VDDAPPMIN - 2.5V) + 4 MHz Note 1: VDDAPPMIN is the minimum voltage of the PICmicro® device in the application. 2: FMAX has a maximum frequency of 10 MHz. 3: The shaded region indicates the permissible combinations of voltage and frequency.  2001 Microchip Technology Inc.
PAGE 6
PIC16C773 2. The details of the new Product Identification System are given below. This information replaces the Product Identification System details given in the Device Data Sheet (DS30275A). PIC16C773 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO.
PAGE 7
PIC16C773 3. The PIC16C77X devices contain new package marking information. The package marking details provided below replace those given in Section 17 of the Device Data Sheet (DS30275A). 15.
PAGE 8
PIC16C773 Package Marking Information (Cont’d) 40-Lead PDIP Example XXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX YYWWNNN 40-Lead CERDIP Windowed PIC16C773/P 9910017 Example XXXXXXXXXXX XXXXXXXXXXX XXXXXXXXXXX YYWWNNN 44-Lead TQFP XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX YYWWNNN 44-Lead MQFP XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX YYWWNNN 44-Lead PLCC XXXXXXXXXX XXXXXXXXXX XXXXXXXXXX YYWWNNN DS80061C-page 8 PIC16C773 /JW 9910017 Example PIC16C773 /PT 9910017 Example PIC16C773 /PQ 9910017 Exam
PAGE 9
PIC16C773 4. The A/D module differential current has been improved to the values shown in Table 3. TABLE 3: DC SPECIFICATION CHANGES FROM DATA SHEET Param Sym. No. D026 ∆IAD Characteristic New Specification Data Sheet Specification Units Conditions Min Typ Max Min Typ Max — 10 — — 300 — µA VDD = 4.0 V; A/D on, not converting — 10 — — 300 — µA VDD = 3.
PAGE 10
PIC16C773 6. The Low Voltage Detect module supply current specification has been changed to the values shown in Table 5. TABLE 5: Data Sheet Specification New Specification Param No. Sym. ∆ILVD D421 7. DC SPECIFICATION CHANGES FROM DATA SHEET Characteristic LVD Supply Current Min Typ Max Min Typ Max — 10 TBD — 10 20 Units µA The Brown-out Reset module supply current specification has been modified to the values shown in Table 6. TABLE 6: Param No.
PAGE 11
PIC16C773 8. The A/D clock source bits (ADCS1:ADCS0) have had their operation modified. See Register 1 for a new definition of the ADCS1 and ADCS0 bits. FIGURE 1: Figure 1 shows how the TAD time is determined based upon the selection of the ADCS<1:0> bits and the source of VREF+ and VREF-. When VREF+ or VREF- comes from the internal voltage reference (VRH or VRL), then the required TAD time is increased by a factor of eight (see electrical specification parameter #130A).
PAGE 12
PIC16C773 TABLE 7: MAXIMUM DEVICE FREQUENCY vs. A/D CLOCK SOURCE A/D Clock Source (TAD) When A/D Reference is selected as External Reference or Analog Supply TAD ≥ 1.6 µs When A/D Reference is selected as Internal VRH or VRL TAD ≥ 12.8 µs Maximum Device Frequency 00 2 TOSC 16 TOSC 1.25 MHz 01 8 TOSC 64 TOSC 5 MHz 10 32 TOSC 256 TOSC 20 MHz 11 A/D RC A/D RC — (1,3) ADCS<1:0> Note 1: The A/D RC source has a typical TAD time of 4 µs for VDD > 3.0V, but can vary between 2 µs and 6 µs.
PAGE 13
PIC16C773 9. The 12-bit A/D module requires some new timing specifications for the A/D clock period (minimum TAD time). These new specifications are for when the reference voltage for the A/D is selected as either the VRH or VRL reference voltage. The new specifications are shown in bold in Table 8. TABLE 8: Parm No.
PAGE 14
PIC16C773 REVISION HISTORY Rev C Document (2/01) Issues 5 (Timer1) and 6 (A/D Converter) were added (page 3). Item 10 and Table 9, concerning output voltage specifications, were added. DS80061C-page 14  2001 Microchip Technology Inc.
PAGE 15
“All rights reserved. Copyright © 2001, Microchip Technology Incorporated, USA. Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise.
PAGE 16
WORLDWIDE SALES AND SERVICE AMERICAS New York Corporate Office 150 Motor Parkway, Suite 202 Hauppauge, NY 11788 Tel: 631-273-5305 Fax: 631-273-5335 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: http://www.microchip.com Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 Atlanta San Jose Microchip Technology Inc.