1999 Microchip Technology Inc. DS41118A-page 1
DEVICE MIGRATIONS
This document is intended to describe the functional differences and the electrical specification differences that are
present when migrating from one device to the next.
Table 1 shows the considerations that must be taken into account when migrating from the PIC16C58A to the
PIC16C58B.
TABLE 1: PIC16C58A → PIC16C58B DIFFERENCES
Note: Even though compatible devices are specified to be tested to the same electrical specification, the charac-
teristics of the de vic es ma y be di ffe rent from e ach other (due to pro cess diff er ences). F or sy stems th at were
designed to the device specifications, these process differences should not cause any issues in the appli-
cation. Fo r systems that did n ot tightly meet the electrical spec ificatio ns, the process di ffe rences ma y cause
the device to behave differently in the application.
Functional Differences
No. Difference H/W S/W Prog.
1 Master Clear Filter added, PIC16C58B. See Electrical Specification #30 ✔ ——
2 Code protection change, PIC16C58B now reads as 0 when code protect enabled ——✔
3 Programming algorithm change, PIC16C58B uses a new programming algorithm ——✔
PIC16C58A→ PIC16C58B Migration
DS41118A-page 2 1999 Microchip Technology Inc.
Electrical Specification Differences
Parm.
No. Sym. Characteristic PIC16C58A Data Sheet PIC16C58B Data Sheet Units Conditions
Min Typ Max Min Typ Max
VDD Supply Voltage
XT, RC, and LP Options
HS option 3.0
4.5 —
—6.25
5.5 3.0
4.5 —
—5.5
5.5 V
V
IDD Supply Current
XT and RC Options
HS Option
HS Option
LP Option, Commercial
LP Option, Industrial
—
—
—
—
—
1.9
2.5
4.7
15
18
2.5
8.0
17
31
39
—
—
—
—
—
1.8
2.4
4.5
14
17
2.4
8.0
16
29
37
mA
mA
mA
µA
µA
FOSC=4.0MHz, VDD=5.5V
FOSC=10.0MHz, VDD=5.5V
FOSC=20.0MHz, VDD=5.5V
FOSC=32KHz, VDD=3.0V
WDT Disabled
FOSC=32KHz, VDD=3.0V
WDT Disabled
IPD Power Down Current
Industrial —
—5.0
0.3 14
5.0 —
—4.0
0.25 14
5.0 µA
µA
VDD=3.0
WDT Enabled
WDT Disabled
VIL Input Low Volt ag e
I/O Por ts VSS —2VDD VSS
VSS —
—0.8
.15VDD V
V4.5V≤VDD≤5.5V
For a l l VDD
VIH Input High Voltage 2.0
0.2VDD+1V —
—VDD
VDD 2.0
0.25VDD+.8V —
—VDD
VDD
V
V
V
V
4.0V≤VDD≤5.5
For a l l VDD
4.5V≤VDD≤5.5V
Otherwise
1999 Microchip Technology Inc. DS41118A-page 3
NOTES:
Information cont ai ned in this public ation regarding device applicat i ons and the like is i nte nded for suggesti on onl y and m ay be superseded by updates. No representation or warran ty is giv en and no liability is assumed
by Microchip Technol ogy Incorpora ted with respec t to the accuracy or us e of such informa tion, or infringe ment of patent s or other intell ectual proper ty rights arisi ng from such use or othe rwise. Use of Microc hip’s pro ducts
as critical c om ponents in life support system s is not authorize d exc ept with expres s w ri t ten approval by M i cro chip. No licenses are conve yed, implicitly or otherwise, unde r any intellectual property right s. The M icrochip
logo and name are registered tradema rks of Mi crochip Technology Inc. in the U.S.A. and other count ri es . A l l rig hts reserved. All other trademar ks men tioned herein are the proper ty of t hei r res pective compani es.
1999 Microchip Technology Inc.
All rights reserved. © 1999 Microchip Technology Incorporated. Printed in the USA. 11/99 Printed on recycled paper.
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