PC16552DV National Semiconductor, PC16552DV Datasheet - Page 4

• Manufacturer Part Number: PC16552DV
• Description: UART IC
• Manufacturer: National Semiconductor

Specifications of PC16552DV

• Transceiver Type: RS232
• Mounting Type: Surface Mount
• Peak Reflow Compatible (260 C): No
• Ic Function: UART IC
• Supply Voltage: 5V
• No. Of Transceivers: 2
• Data Rate Max: 128Kbps
• Leaded Process Compatible: No
• Supply Current: 30mA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

BAUD GENERATOR
RECEIVER
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
WC
N
t
t
t
t
t
t
t
3 0 AC Electrical Characteristics
AR
AW
DH
DS
HZ
MR
RA
RC
RD
RVD
WA
WC
WR
XH
XL
BHD
BLD
RAI
RINT
RXI
SCD
SINT
Note 1 In the FIFO mode (FCR0
indication will be delayed 3 RCLKs Status indicators (PE FE BI) will be delayed 3 RCLKs after the first byte has been received For subsequently received bytes
these indicators will be updated immediately after RDRBR goes inactive Timeout interrupt is delayed 8 RCLKs
Note 2 Charge and discharge time is determined by V
Note 3 All AC timings can be met with current loads that don’t exceed 3 2 mA or
Note 4 For capacitive loads that exceed 100 pF the following typical derating factors should be used
100 pF
150 pF
RD Delay from Address
WR Delay from Address
Data Hold Time
Data Setup Time
RD to Floating Data Delay
Master Reset Pulse Width
Address Hold Time from RD
Read Cycle Update
RD Strobe Width
Delay from RD to Data
Address Hold Time from WR
Write Cycle Update
WR Strobe Width
Duration of Clock High Pulse
Duration of Clock Low Pulse
Read Cycle
Write Cycle
Baud Divisor
Baud Output Positive Edge Delay
Baud Output Negative Edge Delay
Delay from Active Edge of RD to
Reset Interrupt
Delay from Inactive Edge of RD
(RD LSR)
to Reset Interrupt
Delay from READ to RXRDY Inactive
Delay from RCLK to Sample Time
Delay from Stop to Set Interrupt
k
k
I
I
Limits I
SINK
SOURCE
C
C
L s
L s
SOURCE
150 pF t
200 pF t
e
e
Parameter
t
t
t
t
is negative I
AW
e
e
AR
e
e
e
(0 1 ns pF)(C
(0 08 ns pF)(C
(0 5 ns mA)(I
(0 5 ns mA)(I
1) the trigger level interrupts the receiver data available indication the active RXRDY indication and the overrun error
a
a
t
t
RD
WR
SINK s
a
a
L
t
SINK
SOURCE
RC
t
L
WC
b
b
OL
4 8 mA I
100 pF)
mA)
100 pF)
V
OH
mA)
and the external loading
SOURCE s
External Clock (24 MHz Max)
External Clock (24 MHz Max)
T
A
e
f
f
b
X
X
0 C to
120 A C
e
e
Conditions
4
(Note 2)
(Note 1)
24 MHz
24 MHz
b
80 A at 100 pF capacitive loading
a
70 C V
L s
d
d
250 pF
2
2
DD
e a
AC Testing Load Circuit
5V
g
Min
500
15
15
15
10
29
40
29
40
17
17
84
84
10%
5
0
0
1
2
16
Max
20
25
45
45
78
40
55
33
2
b
1
TL C 9426 – 22
BAUDOUT
Cycles
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns