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参数资料
| 型号： | SP3227EEA-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 2/23页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232 ESD SD 16SSOP |
| 标准包装： | 1,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 带卷 (TR) |
0
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP3224E,3225E,3226E,3227E_0_087
Generator
(see note B)
50
3V
SHUTDOWN
RS-232
Output
CL
(see note A)
RL
TEST CIRCUIT
Figure 1. Driver Slew Rate
SR=
6V
tTHL or tTLH
tTLH
tTHL
3V
-3V
3V
-3V
3V
0V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
A. CL includes probe and jig capacitance
B. The pulse generator has the following characteristics: PRR= 250kbit/s, Zo=50, 50% duty cycle, tr ≤10ns, tf ≤10ns
NOTES
Generator
(see note B)
50
3V
SHUTDOWN
RS-232
Output
CL
(see note A)
RL
TEST CIRCUIT
Figure 2. Driver Propagation and Skew
tDPLH
tDPHL
1.5V
50%
3V
0V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
1.5V
Skew=
ItDPHL- tDPLHI
A. CL includes probe and jig capacitance
B. The pulse generator has the following characteristics: PRR= 250kbit/s, Zo=50, 50% duty cycle, tr ≤10ns, tf ≤10ns
NOTES
CHARACTERIzATION CIRCUITS AND WAVEFORMS
Generator
(see note B)
50
3V
SHUTDOWN
RS-232
Output
CL
(see note A)
TEST CIRCUIT
NOTES A. CL includes probe and jig capacitance
B. The pulse generator has the following characteristics: PRR= 250kbit/s, Zo=50, 50% duty cycle, tr ≤10ns, tf ≤10ns
Figure 3. Receiver Propagation Delay and Skew
tRPLH
tRPHL
1.5V
50%
3V
0V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
1.5V
3V or 0V
ONLINE
Skew=
ItRPHL- tRPLHI
3V or 0V
ONLINE
3V or 0V
SHUTDOWN
50
Generator
(See Note B)
CL
(see note A)
Output
RL
GND
VCC
S1
TEST CIRCUIT
NOTES: A CL includes probe and jig capacitance
B. The pulse generator has the folowing characteristics Zo=50, 50% duty cycle, tr ≤10ns, tf ≤10ns
C. tPLZ and tPHZ are the same as tdis
D. tPZL and tPZH are the same as ten
Figure 4. Receiver Enable and Disable Times
VOLTAGE WAVEFORMS
Input
tPHZ
1.5V
3V
0V
VOH
50%
0.3V
(51 at GND)
Output
tPLZ
(51 at VCC)
Output
0.3V
50%
VOL
tPZL
(S1 at VCC)
tPZH
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