MC68HC908JB8JDW Freescale Semiconductor, MC68HC908JB8JDW Datasheet - Page 259

• Manufacturer Part Number: MC68HC908JB8JDW
• Description: IC MCU 8K FLASH 3MHZ 20-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JB8JDW

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: USB
• 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): 4 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

18.10 USB Low-Speed Source Electrical Characteristics
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Freescale Semiconductor
NOTES:
Internal operating frequency
Transition time
Rise time
Fall time
Rise/Fall time matching
Low speed data rate
Source differential driver jitter
To next transition
For paired transitions
Receiver data jitter tolerance
To next transition
For paired transitions
Source SEO interval of EOP
Source jitter for differential transition
to SE0 transition
Receiver SEO interval of EOP
Must reject as EOP
Must accept
Width of SEO interval during
differential transition
1. All voltages are measured from local ground, unless otherwise specified. All timings use a capacitive load of 50 pF, unless
2. Transition times are measured from 10% to 90% of the data signal. The rising and falling edges should be smoothly tran-
3. The two transitions are a (nominal) bit time apart.
otherwise specified. Low-speed timings have a 1.5kΩ pullup to 2.8 V on the D– data line.
sitioning (monotonic). Capacitive loading includes 50 pF of tester capacitance.
Characteristic
(2)
(3)
(1)
Symbol
t
t
t
t
LEOPR1
LEOPR2
DRATE
LEOPT
t
t
t
t
t
t
DDJ1
DDJ2
DJR1
DJR2
f
RFM
LST
Electrical Specifications
OP
t
t
R
F
1.5 Mbs ± 1.5%
crossover point
crossover point
crossover point
crossover point
crossover point
crossover point
Measured at
Measured at
Measured at
Measured at
Measured at
Measured at
C
C
C
C
Conditions
C
C
L
L
L
L
L
L
= 200 pF
= 200 pF
= 600 pF
= 600 pF
= 600pF
= 600pF
t
R
—
/t
USB Low-Speed Source Electrical Characteristics
F
1.4775
676.8
1.25
Min
–25
–10
–75
–45
210
670
75
75
80
—
—
1.500
666.0
Typ
667
—
—
—
—
—
—
—
—
—
—
—
3
Electrical Specifications
1.5225
656.8
Max
1.50
300
300
120
210
25
10
75
45
—
—
—
Technical Data
MHz
Unit
Mbs
µs
ns
ns
ns
ns
ns
ns
ns
%
259