u3745bm ATMEL Corporation, u3745bm Datasheet - Page 25

• Manufacturer Part Number: u3745bm
• Description: Receiver
• Manufacturer: ATMEL Corporation

Electrical Characteristics (Continued)
All parameters refer to GND, V
possible operating range refer to different circuit conditions: V
Electrical Characteristics
All parameters refer to GND, V
possible operating range refer to different circuit conditions: V
4663A–RKE–06/03
Parameters
Threshold voltage for reset
Digital Ports
Data output
- Saturation voltage LOW
- Internal pull-up resistor
- Maximum time constant
- Maximum capacitive load
POUT output
- Saturation voltage LOW
- Saturation voltage HIGH
ASK input
- High-level input voltage
ENABLE input
- Low-level input voltage
- High-level input voltage
MODE input
- Low-level input voltage
- High-level input voltage
TEST input
- Low-level input voltage
Basic Clock Cycle of the Digital Circuitry
Polling Mode
Start-up time
Parameter
Basic clock
basic clock
Sleep time
Extended
cycle
cycle
OPMODE register
Sleep and XSleep
MODE = 0 (USA)
are defined in the
Test Condition
BR_Range0
BR_Range1
BR_Range2
BR_Range3
BR_Range0
BR_Range1
BR_Range2
BR_Range3
MODE = 1
(Europe)
S
S
Symbol
T
= 5 V, T
= 5 V, T
T
T
T
Startup
Sleep
XClk
Clk
Test Conditions
I
t = C
without ext. pull-up resistor
R
I
I
ASK
Idle mode
Active mode
Division factor = 10
Division factor = 14
Test input must always be set to LOW
ol
POUT
POUT
ext
= 1 mA
= 5 k W
L
= 1 mA
= -1 mA
amb
amb
(R
Min.
pup
6.76438-Mhz Osc.
= 25 ° C, f
= 25 ° C, f
//R
(Mode 1)
Ext
Sleep
X
1024
2.0697
2.0697
1855
1061
1061
Typ.
Sleep
663
)
16.6
8.3
4.1
2.1
0
0
´
´
´
= 433.92 MHz and f
= 433.92 MHz and f
Max.
S
S
= 4.5 V to 5.5 V, T
= 4.5 V to 5.5 V, T
Min.
4.90625-Mhz Osc.
(Mode 0)
Sleep
X
1024
2.0383
2.0383
1827
1045
1045
Typ.
16.3
Sleep
V
Symbol
653
8.2
4.1
2.0
ThRESET
R
V
V
0
V
V
V
V
0
C
C
V
V
V
Pup
t
´
Oh
´
OI
Ol
´
= 315 MHz, unless otherwise specified. The
= 315 MHz, unless otherwise specified. The
Ih
Ih
Ih
L
L
Il
Il
Il
Max.
amb
amb
0.8 ´ V
0.8 ´ V
0.8 ´ V
V
= -40 ° C to +85 ° C
= -40 ° C to +85 ° C
S
Min.
1.95
-0.3V
39
Min.
S
S
S
Variable Oscillator
V
S
Typ.
0.08
0.08
-0.14V
1024
2.8
50
1/(f
1/(f
Sleep
8
4
1
X
2
´
896.5
512.5
512.5
320.5
Typ.
Sleep
XTO
XTO
´
´
´
´
T
T
T
T
T
´
Clk
/10)
/14)
Clk
Clk
Clk
Clk
T
U3745BM
´
´
Clk
0.2 ´ V
0.2 ´ V
0.2 ´ V
Max.
3.75
540
0.3
2.5
0.3
61
41
Max.
S
S
S
Unit
k W
pF
pF
µs
V
V
V
V
V
V
V
V
V
V
Unit
ms
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
25