MC68302EH16C Freescale Semiconductor, MC68302EH16C Datasheet - Page 285

IC MPU MULTI-PROTOCOL 132-PQFP

MC68302EH16C

Manufacturer Part Number
MC68302EH16C
Description
IC MPU MULTI-PROTOCOL 132-PQFP
Manufacturer
Freescale Semiconductor

Specifications of MC68302EH16C

Processor Type
M683xx 32-Bit
Speed
16MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
132-MQFP, 132-PQFP
Controller Family/series
68K
Core Size
32 Bit
Ram Memory Size
1152Byte
Cpu Speed
16MHz
No. Of Timers
3
Embedded Interface Type
SCP, TDM
Digital Ic Case Style
PQFP
Rohs Compliant
Yes
Family Name
M68000
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
16MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
5V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
132
Package Type
PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device

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Each of these five pins can be used either as a dedicated timer function or as a general-
purpose port B I/O port pin. Note that the timers do not require the use of external pins. The
input buffers have Schmitt triggers.
TIN1/PB3—Timer 1 Input
This input is used as a timer clock source for timer 1 or as a trigger for the timer 1 capture
register. TIN1 may also be used as the external clock source for any or all three SCC baud
rate generators.
TOUT1/PB4—Timer 1 Output
This output is used as an active-low pulse timeout or an event overflow output (toggle) from
timer 1.
TIN2/PB5—Timer 2 Input
This input can be used as a timer clock source for timer 2 or as a trigger for the timer 2 cap-
ture register.
TOUT2/PB6—Timer 2 Output
This output is used as an active-low pulse timeout or as an event overflow output (toggle)
from timer 2.
WDOG/PB7—Watchdog Output
This active-low, open-drain output indicates expiration of the watchdog timer. WDOG is as-
serted for a period of 16 clock (CLKO) cycles and may be externally connected to the RE-
SET and HALT pins to reset the MC68302. WDOG is never asserted by the on-chip
hardware watchdog (see the BERR signal description). The WDOG pin function is enabled
after a total system reset. It may be reassigned as the PB7 I/O pin in the PBCNT register.
MOTOROLA
Figure 5-15. Timer Pins
MC68302 USER’S MANUAL
MC68302
TIN1 / PB3
TOUT1 / PB4
TIN2 / PB5
TOUT2 / PB6
WDOG / PB7
Signal Description
5-21

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