MITSUBISHI MICROCOMPUTERS
7640 Group
Ver 1.4
DESCRIPTION
• Memory size
ROM .................................................. 32KB on chip
RAM ................................................... 1 KB on chip
• Programmable I/O ports ...................................... 66
.................................................... 8 bit X 7, 5 bit X 2
• Master Bus Interface (MBI) ....................... 17 signals
............................................................. 8 data lines
• Serial I/O ............................. 8 bit clock synchronous
• USB Function Control .............. 4 endpoints,1 control
• Interrupts ................................ 4 external, 19 internal
................................................ 1 software,1 system
• DMAC .......................... 2 channels, 16 address lines
(Max. 6M byte/sec. transfer speed in burst mode)
• Timers ......................................... 8 bit X 3, 16 bit X 2
• Number of Full duplex UARTs available ................... 2
• Supply voltage ............................. Vcc = 4.15~5.25V
• Operating temperature range ................... -20 to 85°C
• Power-saving modes ..... WIT (Idle), STP (Clocks halt)
The 7640 group, an enhanced family of CMOS 8-bit
microcontrollers, offers high-speed operation, large
internal-memory options, and a wide variety of standard peripherals. The series is code compatible with
the 38000, 7200, 7400, and the 7500 series, and provides many performance enhancements to the
instruction set.
This device is a single chip PC peripheral microcontroller based on the Universal Serial Bus (USB)
Version 1.1 specification. This device provides data
exchange between a USB-equipped host computer
and PC peripherals such as telephones, audio systems and digital cameras. See Figure 1.1 for a pin
layout diagram. See Figure 1.2 for the functional
block diagram.
MCU FEATURES
APPLICATIONS
P16/AB14
P17/AB15
P14/AB12
P15/AB13
P12/AB10
P13/AB11
P10/AB8
P11/AB9
P06/AB6
Cameras, games, musical instruments, modems
scanners, and PC peripherals.
P07/AB7
P02/AB2
1.3
P03/AB3
P00/AB0
P01/AB1
P26/DB6
P27/DB7
P24/DB4
P25/DB5
P22/DB2
P23/DB3
P20/DB0
P21/DB1
• Number of basic instructions ................................ 71
• Minimum instruction execution time ................. 83ns
(1-cycle instruction ................................... F = 12 MHz)
• Clock frequency maximum ................ f(Xin) = 24 MHz
........................................................ f(XCin) = 5 MHz
............................................................ F = 12 MHz
P04/AB4
1.2
P05/AB5
1.1
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
P74/OBF1
65
40
P30/RDY
P73/IBF1/HLDA
66
39
P31
P72/S1
67
38
P32
P71/(HOLD)
68
37
P33/DMAout
P70/(SOF)
69
36
P34/Φout
USB D+
70
35
P35/SYNCout
USB D-
71
34
P36/WR
Ext. Cap
72
33
P37/RD
Vss
73
32
P80/UTXD2/SRDY
Vcc
74
31
P81/URXD2/SCLK
P67/DQ7
75
30
P82/CTS2/SRXD
P66/DQ6
76
29
P83/RTS2/STXD
P65/DQ5
77
28
P84/UTXD1
P64/DQ4
78
27
P85/URXD1
P63/DQ3
79
26
P86/CTS1
P62/DQ2
80
25
P87/RTS1
P41/INT0
P40/EDMA
P42/INT1
P43/CNTR0
AVss
20 21 22 23 24
P44/CNTR1
LPF
AVcc
Vcc
P54/S0
Xout
P55/A0
10 11 12 13 14 15 16 17 18 19
Xin
P56/R(E)
9
Vss
P57/W(R/W)
8
P50/XCin
P60/DQ0
7
P51/Tout/XCout
6
RESET
5
CNVss/Vpp
4
P53/IBF0
3
P52/OBF0
2
_
1
P61/DQ1
M37640E8FP
M37640M8-XXXFP
Package outline: 80P6N-A
Fig. 1.1. Pin Layout
1
