DS2250-32-16+ Maxim Integrated Products, DS2250-32-16+ Datasheet - Page 16

• Manufacturer Part Number: DS2250-32-16+
• Description: IC MCU 32KB 16MHZ 40-SIMM
• Manufacturer: Maxim Integrated Products
• Series: DS225xr

Specifications of DS2250-32-16+

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Type: SRAM
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-SIMM
• Processor Series: DS2250
• Core: 8051
• Data Bus Width: 8 bit
• Program Memory Size: 32 KB
• Data Ram Size: 32 KB
• Interface Type: 3-Wire, RS-232, UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

DS2250(T) TYPICAL I
NOTES:
1. All voltages are referenced to ground.
2. Maximum operating I
3. Idle mode I
4. Stop mode I
5. Crystal start-up time is the time required to get the mass of the crystal into vibrational motion from
t
t
connected; RST = V
the time that power is first applied to the circuit until the first clock pulse is produced by the on-chip
oscillator. The user should check with the crystal vendor for the worst-case spec on this time.
CLKF
CLKF
NORMAL OPERATION IS MEASURED USING:
1)
2)
3)
4)
= 10 ns, V
= 10 ns, V
EXTERNAL CRYSTALS ON XTAL1 AND 2.
ALL PORT PINS DISCONNECTED.
RST = 0V AND EA = V
PART PERFORMING ENDLESS LOOP WRITING TO INTERNAL
MEMORY.
CC
CC
is measured with all output pins disconnected; XTAL1 driven at 8 MHz with t
IL
IL
is measured with all output pins disconnected;
= 0.5V; XTAL2 disconnected;
= 0.5V; XTAL2 disconnected;
CC
SS
.
.
CC
CC
is measured with all output pins disconnected; XTAL1 driven with t
VS. FREQUENCY
FREQUENCY OF OPERATION (MHz)
(V
CC
= +5V, T
16 of 18
EA
EA
A
=+25°C)
= RST = PORT0 = V
= PORT0 = V
IDLE MODE OPERATION IS MEASURED USING:
1)
2)
3)
4)
EXTERNAL CLOCK SOURCE AT XTAL1; XTAL2 FLOATING.
ALL PORT PINS DISCONNECTED.
RST = 0V AND EA = V
PART SET IN IDLE MODE BY SOFTWARE.
EA
CC
, RST = V
= PORT0 = V
CC
CC
.
.
SS
.
CC
; XTAL2 not
CLKR
CLKR
,
,