English
Language : 

MC68HC908JB8 Datasheet, PDF (260/286 Pages) Motorola, Inc – MICROCONTROLLERS
Electrical Specifications
18.11 USB Signaling Levels
Bus State
Transmit
Signaling Levels
Receive
Differential 1
Differential 0
Single-ended 0 (SE0)
Data J state (low speed)
D+ > VOH (min) and D– < VOL (max)
D– > VOH (min) and D– < VOL (max)
D+ and D– < VOL (max)
Differential 0
(D+) – (D–) > 200 mV
(D–) – (D+) > 200 mV
D+ and D– < VIL (max)
Differential 0
Data K state (low speed)
Differential 1
Differential 1
Idle state (low speed)
Resume state
NA
Differential 1
D– > VIHZ (min) and D+ < VIL (max)
Differential 1
Start of packet (SOP)
Data lines switch from Idle to K State
End of packet (EOP)
SE0 for approximately 2 bit times(1)
followed by a J state for 1 bit time
SE0 for ≥ 1 bit time(2) followed by a
J state for 1 bit time
Reset
NA
D+ and D– < VIL (max) for ≥ 8µs
NOTES:
1. The width of EOP is defined in bit times relative to the speed of transmission.
2. The width of EOP is defined in bit times relative to the device type receiving the EOP. The bit time is approximate.
18.12 TImer Interface Module Characteristics
Characteristic
Input capture pulse width
Input clock pulse width
Symbol
tTIH, tTIL
tTCH, tTCL
Min
1/fOP
(1/fOP) + 5ns
Max
—
—
Unit
Technical Data
260
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
Electrical Specifications
Freescale Semiconductor