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GMS97C52H Schematic ( PDF Datasheet ) - Hynix Semiconductor

Teilenummer GMS97C52H
Beschreibung 8-BIT SINGLE-CHIP MICROCONTROLLERS
Hersteller Hynix Semiconductor
Logo Hynix Semiconductor Logo 




Gesamt 30 Seiten
GMS97C52H Datasheet, Funktion
DEC. 1998
Ver. 3.0
8-BIT SINGLE-CHIP MICROCONTROLLERS
GMS90 Series
DATA SHEET






GMS97C52H Datasheet, Funktion
GMS90 Series
GMS90C32/52, 97C52
GMS90L32/52, 97L52 (Low voltage versions)
• Fully compatible to standard MCS-51 microcontroller
• Wide operating frequency up to 40MHz (for more detail, see “GMS90 Series Selection Guide”)
• 8K × 8 (EP)ROM
• 256 × 8 RAM
• 64K external program memory space
• 64K external data memory space
• Four 8-bit ports
• Three 16-bit Timers / Counters (Timer2 with up/down counter feature)
• USART
• Six interrupt sources, two priority levels
• Power saving Idle and power down mode
• Quick pulse programming algorithm (in the OTP devices)
• 2-level program memory lock (in the OTP devices)
• 2.7Volt low voltage version available
• P-DIP-40, P-LCC-44, P-MQFP-44 package
Block Diagram
RAM
256 × 8
PORT 0
T0
T2
T1
CPU
8-BIT
USART
PORT 1
PORT 2
ROM / EPROM
8K × 8
PORT 3
I/O
I/O
I/O
I/O
2 Dec. 1998 Ver 3.0

6 Page









GMS97C52H pdf, datenblatt
GMS90 Series
PIN DEFINITIONS AND FUNCTIONS
Symbol
P1.0-P1.7
Pin Number
PLCC-
44
PDIP-
40
MQFP-
44
2-9 1-8 40-44,
1-3
2 1 40
3 2 41
Input/
Output
Function
I/O Port1
Port 1 is an 8-bit bidirectional I/O port with internal
pull-ups. Port 1 pins that have 1s written to them are
pulled high by the internal pull-up resistors and can be
used as inputs. As inputs, port 1 pins that are
externally pulled low will source current because of
the pulls-ups (IIL, in the DC characteristics). Pins P1.0
and P1.1 also. Port1 also receives the low-order
address byte during program memory verification.
Port1 also serves alternate functions of Timer 2.
P1.0 / T2 : Timer/counter 2 external count input
P1.1 / T2EX : Timer/counter 2 trigger input
2 1 40
In GMS9XC54/56/58:
P1.0 / T2, Clock Out : Timer/counter 2 external count
input, Clock Out
P3.0-P3.7 11,
10-17 5, 7-13 I/O Port 3
13-19
Port 3 is an 8-bit bidirectional I/O port with internal
pull-ups. Port 3 pins that have 1s written to them are
pulled high by the internal pull-up resistors and can be
used as inputs. As inputs, port 3 pins that are
externally pulled low will source current because of
the pulls-ups (IIL, in the DC characteristics). Port 3 also
serves the special features of the 80C51 family, as
listed below.
11 10
5
13 11
7
14 12
8
15 13
9
16 14 10
17 15 11
18 16 12
19 17 13
P3.0 / RxD
P3.1 / TxD
P3.2 /INT0
P3.3 / INT1
P3.4 /T0
P3.5 /T1
P3.6 / WR
P3.7 /RD
receiver data input (asynchronous) or
data input output(synchronous) of serial
interface 0
transmitter data output (asynchronous)
or clock output (synchronous) of the
serial interface 0
interrupt 0 input/timer 0 gate control
interrupt 1 input/timer 1 gate control
counter 0 input
counter 1 input
the write control signal latches the data
byte from port 0 into the external data
memory
the read control signal enables the
external data memory to port 0
XTAL2
20
18
14
O XTAL2
Output of the inverting oscillator amplifier.
8 Dec. 1998 Ver 3.0

12 Page





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