MC68EC000 Motorola, MC68EC000 Datasheet - Page 130

• Manufacturer Part Number: MC68EC000
• Description: Core Processor (SCM 68000)
• Manufacturer: Motorola

SECTION 7
ELECTRICAL CHARACTERISTICS
This section provides information on the maximum ratings for the SCM68000 (EC000
core)
7.1 MAXIMUM RATINGS
7.2 CMOS CONSIDERATIONS
Because the basic CMOS cell is composed of two complementary transistors, a virtual semi-
conductor controlled rectifier (SCR) may be formed when an input exceeds the supply volt-
age. The SCR that is formed by this high input causes the device to become latched in a
mode that may result in excessive current drain and eventual destruction of the device.
Although the SCM68000 is implemented with input protection diodes, care should be exer-
cised to ensure that the maximum input voltage specification is not exceeded. Some sys-
tems may require that the CMOS circuitry be isolated from voltage transients; other may
require additional circuitry.
7.3 POWER CONSUMPTION
7.4 AC ELECTRICAL SPECIFICATION DEFINITIONS
The AC specifications presented consist of output delays, input setup and hold times, and
signal skew times. All signals are specified relative to an appropriate edge of the clock and
possibly to one or more other signals.
1.
MOTOROLA
Operating Current @16 MHz
Standby Current
Supply Voltage
Input Voltage
Maximum Operating Temperature
Range
Storage Temperature
The SCM68000 is the name of the Verilog model for the EC000 core. The remainder of this section will refer
to the part as only the SCM68000.
1
.
Rating
Characteristic
Freescale Semiconductor, Inc.
EC000 CORE PROCESSOR USER’S MANUAL
For More Information On This Product,
Symbol
V CC
T stg
V in
T A
Go to: www.freescale.com
–0.3 to 7.0
–0.3 to 7.0
–55 to 150
–40 to100
T L to T H
Value
Typical
TBD
15
3.3 V
Unit
V
V
C
C
Max
TBD
30
Typical
TBD
25
5 V
Max
TBD
50
Unit
mA
mA
7-1