MAX3346E Просмотр технического описания (PDF) - Maxim Integrated
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MAX3346E Datasheet PDF : 17 Pages
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±15kV ESD-Protected USB Transceiver
in UCSP
Typical Operating Characteristics (continued)
(VCC = +5V, VL = +3.3V, TA = +25°C, unless otherwise noted.)
SUSPEND RESPONSE
MAX3346E toc08
RISE- AND FALL-TIME MATCHING
(LOW SPEED)
MAX3346E toc09
f = 750kHz
RISE- AND FALL-TIME MATCHING
(FULL SPEED)
MAX3346E toc10
f = 6MHz
A
0
D+
D+
B
0
A: SUSP, 2V/div
B: RCV, 2V/div
100ns/div
D-
0
100ns/div
D-
0
20ns/div
PIN
TSSOP
UCSP
1
D2
2
D1
3
C2
4
C1
5
B1
6
A1
NAME
RCV
VP
MODE
VM
OE
ENUM
Pin Description
INPUT/
OUTPUT
FUNCTION
Output
Input/
Output
Input
Input/
Output
Receiver Output. Single-ended CMOS output. RCV responds to the differential
input on D+ and D- (see Table 3).
System-Side Data Input/Output. Drive OE high to make VP a receiver output.
Drive OE low to make VP a driver input (see Table 3).
Mode Control Input. Selects single-ended (mode zero) or differential (mode one)
input for the system side when converting logic-level signals to USB-level
signals. If MODE is forced high, mode one is selected. If MODE is forced low,
mode zero is selected (see Table 3).
System-Side Data Input/Output. Drive OE high to make VM a receiver output.
Drive OE low to make VM a driver input (see Table 3).
Input
Output Enable. Drive OE high to enable the receiver. Drive OE low to enable the
driver input.
Input
Enumerate Input. Drive ENUM low to disconnect the internal 1.5kΩ resistor, and
enumerate the USB. With ENUM high, the internal 1.5kΩ resistor is connected to
either D+ or D-, depending on the state of SPEED.
6 _______________________________________________________________________________________
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