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PDF LC87F74C8A Data sheet ( Hoja de datos )
| Número de pieza | LC87F74C8A | |
| Descripción | 8-bit 1-chip Microcontroller | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Ordering number : ENN7825
LC87F74C8A
CMOS IC
FROM 128K-byte, RAM 4096-byte on chip
8-bit 1-chip Microcontroller
Overview
The LC87F74C8A is an 8-bit single chip microcontroller with the following on-chip functional blocks :
• CPU : operable at a minimum bus cycle time of 100ns
• 128K-bytes flash ROM (on-board rewritable)
• On-chip RAM : 4096-bytes
• LCD controller/driver
• Two high performance 16-bit timer/counters (can be divided into 8-bit units)
• 16-bit timer/PWM (can be divided into two 8-bit timers)
• Four 8-bit timer with prescalers
• Timer for use as date/time clock
• Synchronous serial I/O port (with automatic block transmit/receive function)
• Asynchronous/synchronous serial I/O port
• 15-channel × 8-bit AD converter
• High-speed clock counter
• System clock divider
• Small signal detector
• 20-source 10-vectored interrupt system
All of the above functions are fabricated on a single chip.
Features
■Flash ROM
• Single 5V power supply, on-board writable
• Block erase in 128-byte units
• 131072 × 8-bits (LC87F74C8A)
■Random access memory (RAM)
• 4096 × 9-bits (LC87F74C8A)
■Minimum bus cycle time
• 100ns (10MHz)
Note : The bus cycle time indicates ROM read time.
Ver.1.02
82202
83004 JO IM No.7825-1/21
1 page  
Package Dimensions
unit : mm
3151A
LC87F74C8A
Package Dimensions
unit : mm
3274
Pin Assignment
V2/PL5/AN13
V1/PL4/AN12
COM0/PL0
COM1/PL1
COM2/PL2
COM3/PL3
P30/INT4/T1IN
P31/INT4/T1IN
VSS3
VDD3
P32/INT4/T1IN
P33/INT4/T1IN
P34/INT5/T1IN
P35/INT5/T1IN
P00
P01
P02
P03
P04
P05
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
LC87F74C8A
50 S20/PC4
49 S19/PC3
48 S18/PC2
47 S17/PC1
46 S16/PC0
45 S15/PB7
44 S14/PB6
43 S13/PB5
42 S12/PB4
41 S11/PB3
40 S10/PB2
39 S9/PB1
38 S8/PB0
37 S7/PA7
36 S6/PA6
35 S5/PA5
34 S4/PA4
33 S3/PA3
32 S2/PA2
31 S1/PA1
Top view
SANYO:QIP100E
No.7825-5/21
5 Page 
LC87F74C8A
Recommended Operating Range / Ta = -20°C to +70°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Pins
Conditions
VDD [V]
min
Limits
typ max
Operating supply
voltage range
VDD(1)
VDD(2)
VDD1 = VDD2 = VDD3
0.294µs≤ tCYC≤200µs
0.735µs≤ tCYC≤200µs
4.5 5.5
3.0 5.5
Supply voltage
range in Hold
mode
VHD
VDD1
Keep RAM and register
data in HOLD mode.
2.0 5.5
Input high voltage VIH(1)
• Port 0, 3, 8
• Port A, B, C, D, E, F, L
Output disable
3.0 to 5.5
0.3VDD
+0.7
VDD
VIH(2)
• Port 1
• Port 71, 72, 73
• P70 port input/interrupt
Output disable
3.0 to 5.5
0.3VDD
+0.7
VDD
VIH(3)
VIH(4)
P87 small signal input
Port 70
Watchdog timer
Output disable
Output disable
3.0 to 5.5
3.0 to 5.5
0.75VDD
0.9VDD
VDD
VDD
Input low voltage
VIH(5)
VIL(1)
XT1, XT2, CF1, RES
• Port 0, 3, 8
• Port A, B, C, D, E, F, L
Output disable
3.0 to 5.5
3.0 to 5.5
0.75VDD
VSS
VDD
0.15VDD
+0.4
VIL(2)
• Port 1
• Port 71, 72, 73
• P70 port input/interrupt
Output disable
3.0 to 5.5
VSS
0.1VDD
+0.4
VIL(3)
Port 87 small signal
input
Output disable
3.0 to 5.5
VSS
0.25VDD
VIL(4)
Port 70
Watchdog timer
Output disable
3.0 to 5.5
VSS
0.8VDD
-1.0
Operation cycle
time
VIL(5)
tCYC
XT1, XT2, CF1, RES
3.0 to 5.5
4.5 to 5.5
3.0 to 5.5
VSS
0.294
0.735
0.25VDD
200
200
External system
clock frequency
FEXCF(1) CF1
• CF2 open
• System clock divider :
4.5 to 5.5
0.1
10
1/1
• External clock
DUTY = 50 ± 5%
3.0 to 5.5
0.1
4
• CF2 open
• System clock divider :
1/2
4.5 to 5.5
3.0 to 5.5
0.2
0.2
20
8
Oscillation
frequency range
FmCF(1)
CF1, CF2
10MHz ceramic resonator
oscillation
4.5 to 5.5
10
(Note 1)
Refer to figure 1
FmCF(2)
CF1, CF2
4MHz ceramic resonator
oscillation
3.0 to 5.5
4
Refer to figure 1
FmRC
RC oscillation
3.0 to 5.5
0.3 1.0
2.0
FmMRC
Frequency variable RC
oscillation source
oscillation
3.0 to 5.5
50
FsX’tal
XT1, XT2
32.768kHz crystal
resonator oscillation
3.0 to 5.5
32.768
Refer to figure 2
Note 1 : The parts value of oscillation circuit is shown in table 1 and table 2.
unit
V
µs
MHz
kHz
No.7825-11/21
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet LC87F74C8A.PDF ] | |
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