COP8SGR728M7/NOPB National Semiconductor, COP8SGR728M7/NOPB Datasheet - Page 15

• Manufacturer Part Number: COP8SGR728M7/NOPB
• Description: MCU 8BIT CMOS ROM OTP 28-SOIC
• Manufacturer: National Semiconductor
• Series: COP8™ 8SGr

Specifications of COP8SGR728M7/NOPB

• Core Processor: COP8
• Core Size: 8-Bit
• Speed: 15MHz
• Connectivity: Microwire/Plus (SPI), UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 15 MHz
• Data Ram Size: 512 B
• Number Of Programmable I/os: 40
• Number Of Timers: 3
• Height: 2.34 mm
• Interface Type: USART
• Length: 17.91 mm
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 7.49 mm
• For Use With: COP8SG-EPU - BOARD PROTOTYPE/TARGET COP8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: COP8SGR728M7

4.0 Pin Descriptions
Note: For compatibility with existing software written for COP888xG devices
Port D is an 8-bit output port that is preset high when RESET
goes low. The user can tie two or more D port outputs
(except D2) together in order to get a higher drive.
Note: Care must be exercised with the D2 pin operation. At RESET, the
and with existing Mask ROM devices, a read of the Port I input pins
(address xxD7) will return the same data as reading the Port F input
pins (address xx96). It is recommended new applications which will go
to production with the COP8SGx use the Port F addresses. Note that
compatible ROM devices contains the input only Port I instead of the
bi-directional Port F.
external loads on this pin must ensure that the output voltages stay
above 0.7 V
keep the external loading on D2 to less than 1000 pF.
FIGURE 4. I/O Port Configurations
CC
to prevent the chip from entering special modes. Also
(Continued)
10131710
15
FIGURE 5. I/O Port Configurations — Output Mode
FIGURE 6. I/O Port Configurations — Input Mode
www.national.com
10131711
10131712