MC908QB8CDWE Freescale Semiconductor, MC908QB8CDWE Datasheet - Page 214

• Manufacturer Part Number: MC908QB8CDWE
• Description: IC MCU 8BIT 8K FLASH 16-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QB8CDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Processor Series: HC08QB
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 14
• Number Of Timers: 4
• Operating Supply Voltage: 3 V to 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• For Use With: DEMO908QB8 - BOARD DEMO FOR MC68HC908QB8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Electrical Specifications
18.10 3-V Control Timing
214
Internal operating frequency
Internal clock period (1/f
RST input pulse width low
IRQ interrupt pulse width low (edge-triggered)
IRQ interrupt pulse period
1. V
2. Values are based on characterization results, not tested in production.
3. The minimum period is the number of cycles it takes to execute the interrupt service routine plus 1 t
noted.
DD
= 2.7 to 3.3 Vdc, V
RST
IRQ
OP
Characteristic
(2)
(2)
SS
)
= 0 Vdc, T
A
Figure 18-6. RST and IRQ Timing
(1)
= T
MC68HC908QB8 Data Sheet, Rev. 3
L
(2)
to T
t
H
t
ILIH
RL
; timing shown with respect to 20% V
t
ILIL
f
Symbol
OP
t
t
t
t
ILIH
ILIL
cyc
(f
RL
Bus
)
Note
DD
Min
250
200
200
—
and 70% V
(3)
Freescale Semiconductor
cyc
Max
DD
—
—
—
—
4
.
, unless otherwise
MHz
Unit
t
ns
ns
ns
cyc