DS2250T Maxim Integrated Products, Inc., DS2250T Datasheet - Page 16

• Manufacturer Part Number: DS2250T
• Description: Soft Microcontroller Module
• Manufacturer: Maxim Integrated Products, Inc.

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
,
,