N80C251SQ16 Intel, N80C251SQ16 Datasheet - Page 20

• 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

20
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
T
T
T
T
T
T
T
T
T
T
T
T
NOTES:
1.
2.
3.
4.
5.
Symbol
RLRH
WLWH
RLDV
RHDX
RLAZ
RHDZ
RHDZ
RHLH
WHLH
LLRL
LHAX
RHLH2
16 MHz.
Specifications for PSEN# are identical to those for RD#.
In the formula, M=Number of wait states (0 or 1) for ALE.
In the formula, N=Number of wait states (0,1,2, or 3) for RD#/PSEN#/WR#.
“Typical” specifications are untested and not guaranteed.
1
2
1
(2)
(2)
(2)
(2) RD#/PSEN# Low to valid Data/Instruction In
(2) Data/Instruction Hold Time. Occurs after
WR# Pulse Width
ALE Low to RD# or PSEN# Low
ALE High to Address Hold
RD#/PSEN# are exerted to V
RD#/PSEN# Low to Address Float
Instruction Float after RD#/PSEN# High
Data Float after RD#/PSEN# High
RD#/PSEN# High to ALE High (Instruction)
RD#/PSEN# High to ALE High (Data)
WR# High to ALE High
RD# or PSEN# Pulse Width
@ 12 MHz
@ 16 MHz
@ 12 MHz
@ 16 MHz
@ 12 MHz
@ 16 MHz
@ 12 MHz
@ 16 MHz
@ 12 MHz
@ 16 MHz
commercial @ 12 MHz and 16 MHz
express @ 12 MHz and 16 MHz
@ 12 MHz
@ 16 MHz
@ 12 MHz
@ 16 MHz
@ 12 MHz
@ 16 MHz
@ 12 MHz
@ 16 MHz
Parameter
Table 11. AC Characteristics (Continued)
OH
146.6
105
146.6
105
58.3
37.5
83.3
62.5
10
10
156.6
115
171.6
130
@ Max F
Typ.=0
Typ.=2
Typ.=2
Min
(5)
(5)
0
5
5
106.6
65
2
18
10
156.6
115
osc
Max
(1)
(1+2M)T
2T
T
T
T
2T
Typ. = 0
Typ.=25
Typ.=25
2(1+N)
OSC
2(1+N)
OSC
OSC
osc
osc
Min
(5)
(5)
10
0
F
– 20
– 20
– 25
PRELIMINARY
osc
- 10
+ 5
OSC
Variable
2Tosc – 10
Tosc – 60
2(1+N)
Max
18
10
2
Units
(4)
(4)
(3)
(4)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns