MC68HC908GR8CD Freescale Semiconductor, MC68HC908GR8CD Datasheet - Page 248

• Manufacturer Part Number: MC68HC908GR8CD
• Description: 8-bit Microcontrollers - MCU 8 Bit 8MHz
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC908GR8CD

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: HC08
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 384 B
• Operating Supply Voltage: 3 V to 5 V
• Package / Case: SOIC-28
• Mounting Style: SMD/SMT
• Data Rom Size: 64 KB
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 21
• Program Memory Type: Flash

Electrical Specifications
23.2 Functional Operating Range
23.3 Thermal Characteristics
248
Operating temperature range
Operating voltage range
Thermal resistance
I/O pin power dissipation
Power dissipation
Constant
Average junction temperature
Maximum junction temperature
1. Power dissipation is a function of temperature.
2. K is a constant unique to the device. K can be determined for a known T
PDIP (28-pin)
SOIC (28-pin)
QFP (32-pin)
SDIP (42-pin)
T
J
can be determined for any value of T
(2)
To ensure correct operation of the MCU under all operating conditions, the
user must write data $1C to address $0033 immediately after reset. This is
to ensure proper termination of an unused module within the MCU.
(1)
Characteristic
Characteristic
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
A
.
NOTE
Symbol
Symbol
A
V
P
T
θ
P
and measured P
T
T
DD
K
JA
I/O
JM
A
D
J
P
D
= (I
P
User-Determined
D
T
K/(T
D
A
DD
–40 to +125
+ P
. With this value of K, P
x (T
3.0 ±10%
5.0 ±10%
+ (P
J
Value
Value
× V
D
A
140
+ 273 °C)
60
60
95
57
2
Freescale Semiconductor
D
+ 273 °C)
× θ
DD
× θ
) + P
JA
JA
)
I/O
=
W/°C
D
Unit
Unit
°C/W
°C
W
W
°C
°C
V
and