N80C251SQ16 Intel, N80C251SQ16 Datasheet - Page 35

• Manufacturer Part Number: N80C251SQ16
• Description: IC MPU 8-BIT 5V 16MHZ 44-PLCC
• Manufacturer: Intel
• Series: 80Cr

Specifications of N80C251SQ16

• Rohs Status: RoHS non-compliant
• Core Processor: MCS 251
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SIO
• Peripherals: PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Other names: 804459

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
“[M] [C] '94 '95 C” as the last line of the topside
marking. This datasheet replaces earlier product
information. The following changes appear in the -
003 datasheet:
1.
2.
3.
4.
5.
6.
7.
T
T
T
T
AVQV
ELQV
EHQZ
GHGL
Real-time wait state operation is described in
the datasheet.
Memory map reserved locations are newly
defined and the Memory Map is now referred
to as the “Address Map.”
AC Characteristics have been updated. The
following AC parameters have changed: T
T
T
T
DC Characteristics have been updated. The
following DC specs have changed: I
typical, I
An I
Process information is no longer contained in
the datasheet.
The section “Programming and Verifying Non-
volatile Memory” has been deleted. See the
8XC251SA/SB/SP/SQ Embedded Microcon-
troller User’s Manual. Timing and Characteris-
tics for Programming and Verifying Nonvolatile
RLRH
WHLH
QVWH
PRELIMINARY
CC
, T
, T
, and T
vs. Frequency graph is included.
Table 18. Nonvolatile Memory Programming and Verification Characteristics at
Address to Data Valid
ENABLE Low to Data Valid
Data Float after ENABLE
PROG# High to PROG# Low
WLWH
AVDV
DL
max, I
1
, T
WHAX
, T
LLRL
AVDV
CC
.
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
, T
2
typical, and I
RLDV
, T
T
AVRL
A
, T
= 21 – 27 °C, V
RHDZ
, T
AVWL
1
, T
CC
1
RHDZ
, T
max.
PD
AVWL
2
max, I
, T
CC
2
RHLH
,
LLAX
= 5 V, and V
DL
2
,
,
8.
9.
10. New sections have been created to provide
11. Proliferation Options and Package Options are
12. Temperature range is contained in the Electri-
13. Bus timing diagrams have been organized into
The (-002) revision of the 8XC251SA/SB/SP/SQ
datasheet contains information on products with
“[M] [C] '94 '95 B” as the last line of the topside
marking. This datasheet replaces earlier product
information. The following changes appear in the -
002 datasheet:
1.
2.
3.
10
0
SS
memory have been retained in this datasheet.
Signature Byte information has been deleted.
See the 8XC251SA/SB/SP/SQ Embedded
Microcontroller User’s Manual.
Sections in the datasheet are numbered.
better organization. These include “Nomencla-
ture,” “Pinout,” “Signals,” “Address Map,”
“Electrical Characteristics,” “Thermal Charac-
teristics,” “Nonvolatile Memory Programming
and Verification Characteristics”, “Errata,” and
“Revision History”
in the Nomenclature section.
cal Characteristics section under “Operating
Conditions”
subsections.
A corrected PDIP diagram appears on page 7.
A corrected formula to calculate T
described on page 17.
The RD#/PSEN# waveform is changed in Fig-
ure 11 on page 25.
= 0 V(Continued)
48T
48T
48T
OSC
OSC
OSC
LHLL
s
is
35