NS16C2552TVAX/NOPB National Semiconductor, NS16C2552TVAX/NOPB Datasheet - Page 38

• Manufacturer Part Number: NS16C2552TVAX/NOPB
• Description: IC UART DUAL 16BYTE 44-PLCC
• Manufacturer: National Semiconductor

Specifications of NS16C2552TVAX/NOPB

• Features: Programmable
• Number Of Channels: 2, DUART
• Fifo's: 16 Byte
• Voltage - Supply: 2.97 V ~ 5.5 V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: NS16C2552TVAX

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Note 1: Maximum ratings indicate limits beyond which permanent damage may occur. Continuous operation at these limits is not intended and should be limited
to those conditions specified under DC electrical characteristics.
Note 2: The B
Symbol
t
t
t
t
t
t
t
t
t
t
MDO
SINT
RINT
t
t
t
t
t
t
WST
t
WXI
SXA
SSR
SIM
RIM
WR
STI
RXI
HZ
DY
DS
DH
HR
CLK
Parameter
Data Disable Time
WR Strobe Width
Write Cycle Delay
Data Setup Time
Data Hold Time
Delay from WR to Output
Delay from Modem input to
Interrupt output
Delay to Reset interrupt from
RD falling edge
Delay from Stop to Interrupt Set
Delay from of RD to Reset
Interrupt
Delay from center of Start to
INTR Set
Delay from WR to Transmit Start
Delay from WR to interrupt clear
Delay from WR to TXRDY rising
edge
Delay from Center of Start to
TXRDY falling edge
Delay from Stop to RXRDY
falling edge
Delay from /RD to RXRDY rising
edge
period decreases with increasing reference clock input. At higher clock input frequency, the number of B
Line Receive and Transmit
Condition
(Note 2)
Modem Control
DMA Interface
38
Min
35
35
12
0
4
0
3.3V Limits
Max
18
20
20
23
45
16
16
34
27
27
4
8
4
Min
24
24
12
0
4
0
CLK
5.0V Limits
increases.
Max
18
15
15
17
30
10
16
22
18
18
4
8
4
Units
Bclk
Bclk
Bclk
Bclk
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns