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80C251SB16 Datasheet, PDF (35/36 Pages) Intel Corporation – HIGH-PERFORMANCE CHMOS MICROCONTROLLER | |||
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8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
TAVQV
TELQV
TEHQZ
TGHGL
Table 18. Nonvolatile Memory Programming and Verification Characteristics at
TA = 21 â 27 °C, VCC = 5 V, and VSS = 0 V(Continued)
Address to Data Valid
48TOSC
ENABLE Low to Data Valid
48TOSC
Data Float after ENABLE
0
48TOSC
PROG# High to PROG# Low
10
µs
8.0 ERRATA
There are no known errata for this product.
9.0 REVISION HISTORY
This (-003) revision of the 8XC251SA/SB/SP/SQ
datasheet contains information on products with
â[M] [C] '94 '95 Câ as the last line of the topside
marking. This datasheet replaces earlier product
information. The following changes appear in the -
003 datasheet:
1. Real-time wait state operation is described in
the datasheet.
2. Memory map reserved locations are newly
defined and the Memory Map is now referred
to as the âAddress Map.â
3. AC Characteristics have been updated. The
following AC parameters have changed: TLLAX,
TRLRH, TWLWH, TLLRL, TRLDV, TRHDZ1, TRHDZ2, TRHLH2,
TWHLH, TAVDV1, TAVDV2, TAVRL, TAVWL1, TAVWL2,
TQVWH, and TWHAX.
4. DC Characteristics have been updated. The
following DC specs have changed: IPD max, IDL
typical, IDL max, ICC typical, and ICC max.
5. An ICC vs. Frequency graph is included.
6. Process information is no longer contained in
the datasheet.
7. The section âProgramming and Verifying Non-
volatile Memoryâ has been deleted. See the
8XC251SA/SB/SP/SQ Embedded Microcon-
troller Userâs Manual. Timing and Characteris-
tics for Programming and Verifying Nonvolatile
memory have been retained in this datasheet.
8. Signature Byte information has been deleted.
See the 8XC251SA/SB/SP/SQ Embedded
Microcontroller Userâs Manual.
9. Sections in the datasheet are numbered.
10. New sections have been created to provide
better organization. These include âNomencla-
ture,â âPinout,â âSignals,â âAddress Map,â
âElectrical Characteristics,â âThermal Charac-
teristics,â âNonvolatile Memory Programming
and Verification Characteristicsâ, âErrata,â and
âRevision Historyâ
11. Proliferation Options and Package Options are
in the Nomenclature section.
12. Temperature range is contained in the Electri-
cal Characteristics section under âOperating
Conditionsâ
13. Bus timing diagrams have been organized into
subsections.
The (-002) revision of the 8XC251SA/SB/SP/SQ
datasheet contains information on products with
â[M] [C] '94 '95 Bâ as the last line of the topside
marking. This datasheet replaces earlier product
information. The following changes appear in the -
002 datasheet:
1. A corrected PDIP diagram appears on page 7.
2. A corrected formula to calculate TLHLL is
described on page 17.
3. The RD#/PSEN# waveform is changed in Fig-
ure 11 on page 25.
PRELIMINARY
35
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