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MC908JB16DWE Datasheet, PDF (322/332 Pages) Freescale Semiconductor, Inc – Microcontrollers
Electrical Specifications
20.12 USB Signaling Levels
Bus State
Transmit
Signaling Levels
Receive
Differential 1
D+ > VOH (min) and D– < VOL (max) (D+) – (D–) > 200 mV
Differential 0
D– > VOH (min) and D– < VOL (max) (D–) – (D+) > 200 mV
Single-ended 0 (SE0)
D+ and D– < VOL (max)
D+ and D– < VIL (max)
Data J state (low speed)
Differential 0
Differential 0
Data K state (low speed)
Differential 1
Differential 1
Idle state (low speed)
NA
D– > VIHZ (min) and D+ < VIL (max)
Resume state
Differential 1
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.
20.13 CGM Electrical Characteristics
Characteristic(1)
CGM power supply
CGM supply current
CGM regulator output voltage
CGM output high voltage
CGM output low voltage
CGM output equivalent
capacitance
CGM output rise and fall time
Output resistive load
Condition
Both PLLs enabled
One PLL enabled
(ILoad = –2.0 mA)
(ILoad = 1.6 mA)
Symbol
VDDA
IDDA
VREGA0
VOH
VOL
Min
4.0
—
—
2.9
VREGA0 – 0.8
—
COUT
—
RL = 2kΩ
CL = 10pF
tR/tF
—
10% to 90%
RL
2
Typ(2)
5
6
3
3.3
—
—
—
—
—
Max
5.5
10
5
3.7
—
0.4
12
8
—
Unit
V
mA
mA
V
V
V
pF
ns
kΩ
Technical Data
322
Electrical Specifications
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor