LTC1555LEGN#TRPBF Linear Technology, LTC1555LEGN#TRPBF Datasheet - Page 5

• Manufacturer Part Number: LTC1555LEGN#TRPBF
• Description: IC LEVEL TRANSLATOR 16-SSOP
• Manufacturer: Linear Technology

Specifications of LTC1555LEGN#TRPBF

• Logic Function: Level Shifter
• Number Of Bits: 1
• Input Type: Voltage
• Output Type: Voltage
• Number Of Channels: 1
• Number Of Outputs/channel: 1
• Differential - Input:output: No/No
• Propagation Delay (max): 18ns
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SSOP
• Supply Voltage: 1.8 V ~ 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Rate: -

PIN
N/C (Pin 6): No Internal Connection.
M1 (Pin 7): Mode Control Bit 1 (see Table 1).
M0 (Pin 8): Mode Control Bit 0 (see Table 1).
GND (Pin 9): Ground for Both the SIM and the Controller.
Should be connected to the SIM GND contact as well as to
the V
bypassing is required to meet 15kV ESD specifications.
C1
C1
BLOCK DIAGRA
*Actual V
Table 1. Truth Table
–
+
U
(Pin 10): Charge Pump Flying Capacitor Negative Input.
(Pin 11): Charge Pump Flying Capacitor Positive Input.
IN
DV
DV
FUNCTIONS
M0
0V
0V
/controller GND. Proper grounding and supply
CC
CC
CC
will depend on the output current in this mode.
U
CONTROLLER
U
DV
DV
M1
0V
0V
V
CC
CC
CC
W
V
OPTIONAL
1.8V
BATT
C
1 F
Shutdown (V
IN
OPERATING MODE
V
M0
M1
DV
RIN
CIN
DATA
DDRV
IN
CC
V
V
V
CC
CC
CC
*
1 A
= 3V
= 5V
= V
CC
20k
IN
= 0V)
CHARGE PUMP
STEP-DOWN
CONVERTER
STEP-UP/
DC/DC
UVLO
C1
0.1 F
+
V
2.6V and 6V. There is no power-up sequencing require-
ment for V
V
to the SIM V
mined by the M0-M1 pins (see Table 1). V
to GND during shutdown (M0, M1 = 0V). A 2.2 F low ESR
ouptut capacitor should connect close to the V
I/O (Pin 14): SIM Side I/O Pin. The pin is an open drain
output with a nominal pull-up resistance of 10k
should be connected to the SIM I/O contact. The SIM card
must sink up to 1mA max when driving the I/O pin low due
to the internal pull-up resistors on the I/O and DATA pins.
The I/O pin is held active low during shutdown.
RST (Pin 15): Level Shifted Reset Output Pin. Should be
connected to the SIM RST contact.
CLK (Pin 16): Level Shifted Clock Output Pin. Should be
connected to the SIM CLK contact. Careful trace routing is
recommended due to fast rise and fall edge speeds.
C1
IN
CC
–
(Pin 12): Charge Pump Input Pin. May be between
(Pin 13): SIM Card V
10k
LTC1555L
GND
RST
V
CLK
IN
I/O
CC
CC
with respect to DV
contact. The V
C
2.2 F
OUT
CC
V
RST
CLK
I/O
GND
CC
Output. Should be connected
SIM
CC
CC
output voltage is deter-
.
1555L BD
LTC1555L
CC
is discharged
CC
pin.
5
and