73S1121F
EMV Smart-Card Terminal Controller
with Built-in Dual ISO-7816 Interface and USB
DATA SHEET
DC CHARACTERISTICS: USB INTERFACE
SYMBOL
PARAMETER
Condition
MIN
Typ.
MAX
UNIT
Receiver parameters
VDI
Differential input sensitivity
Differential common mode
range
|(D+) - (D-)|
0.2
0.8
0.8
V
V
V
VCM
Includes VDI range
2.5
2.0
VSE
Single ended receiver threshold
Transmitter levels
USBCon = 1 (D+ pull-
up enabled)
VOL
VOH
Low Level Output Voltage
High Level Output Voltage
0.3
V
V
15K ohm resistor to
ground
VPD - 0.1
VPD
Leakage parameters
High-Z state data line leakage
current
Output resistance
IOZ
0V < VIN < 3.6V
±5
nA
ZDRV
Driver output resistance
Steady state drive
USBCon = 1
28
44
Ω
kΩ
4
Zpu
Pull-up Resistor (to VPD
)
1.2
1.5
1.8
Transceiver power requirements (not measurable on tester)
Operating supply current
IPSO
Outputs enabled
Outputs Hi-Z
5
mA
(output)
IPSI
Operating supply current (input)
Supply current in power down
Supply current in suspend.
1
mA
nA
nA
IPDN
10
10
IPSS
4 USB specifies that this value be 1.5k Ω +/- 5%. An external resistor could be used instead (MIUSCTRL bit 0 set by firmware)
Page: 14 of 25
© 2005 TERIDIAN Semiconductor Corporation
Rev 2.3
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
