N80C251TB24 Intel, N80C251TB24 Datasheet - Page 22

• Manufacturer Part Number: N80C251TB24
• Description: IC MPU 8-BIT 5V 24MHZ 44-PLCC
• Manufacturer: Intel
• Series: 80Cr

Specifications of N80C251TB24

• Rohs Status: RoHS non-compliant
• Core Processor: MCS 251
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: SIO
• Peripherals: PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 1K 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: 816721

8xC251TB/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
16
T
T
T
T
T
T
T
T
T
T
T
T
AVDV1
AVDV1A
AVDV2
AVDV3
AVRL
AVRLA
RHLH2
RHLH2A
RHLH1
RHLH1A
WHLH
WHLHA
Symbol
RD# or PSEN# High to ALE
High (data)
@ 16MHz
@ 24MHz
RD# or PSEN# High to ALE
High (data)
@ 16MHz
@ 24MHz
RD# or PSEN# High to ALE
High (Instruction)
@ 16MHz
@ 24MHz
RD# or PSEN# High to ALE
High (Instruction)
@ 16MHz
@ 24MHz
WR# High to ALE Low
@ 16MHz
@ 24MHz
WR# High to ALE Low
@ 16MHz
@ 24MHz
Address (mux’d) valid to
Valid Data/ Instruction In
@ 16MHz
@ 24MHz
Address (mux’d) valid to
Valid Data/ Instruction In
@ 16MHz
@ 24MHz
Address (demux’d) valid to
Valid Data/Instruction In
@ 16MHz
@ 24MHz
Address (P0)Valid to Valid
Instruction In
@ 16MHz
@ 24MHz
Address Valid to RD# or
PSEN# Low
@ 16MHz
@ 24MHz
Address Valid to RD# or
PSEN# Low
@ 16MHz
@ 24MHz
Parameter
Table 11. AC Characteristics (Sheet 3 of 4)
180.5
118.1
180.5
118.1
@ Max F
93.4
55.5
34.7
93.4
43.4
72.5
51.7
Min
135
135
10
10
85
OSC
106.8
159.5
128.8
Max
97.1
23.4
190
212
65
(1)
2T
2T
2T
2T
3T
3T
(0.5+M)
T
(1+M)
OSC
OSC
OSC
OSC
OSC
Min
OSC
OSC
10
F
OSC
+10
+10
+10
-7
-40
-7
-7
Variable
(1.5+M+N)
2T
2T
2T
2T
(2+M+N)
(2+M+N)
(1+N)
OSC
OSC
OSC
OSC
Max
-60
-28
-38
-60
ns (3,4)
ns (3,4)
ns (3,4)
ns (3,5)
Units
ns (4)
ns (5)
ns (4)
ns (5)
ns (4)
ns (5)
ns (3)
ns (3)