PCF2123BS/1,512 NXP Semiconductors, PCF2123BS/1,512 Datasheet - Page 43

• Manufacturer Part Number: PCF2123BS/1,512
• Description: IC CLOCK HVQFN16
• Manufacturer: NXP Semiconductors
• Type: Clock/Calendar/Alarmr

Specifications of PCF2123BS/1,512

• Package / Case: 16-VQFN Exposed Pad, 16-HVQFN, 16-SQFN, 16-DHVQFN
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.1 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Function: Clock, Calendar, Alarm, Watchdog
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.1 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: SPI
• Supply Current: 250 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-5051-5; 935286382512

NXP Semiconductors
12. Dynamic characteristics
Table 45.
V
referenced to V
PCF2123
Product data sheet
Symbol
Timing characteristics (see
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
clk(SCL)
SCL
clk(H)
clk(L)
r
f
su(CE)
h(CE)
rec(CE)
w(CE)
su
h
d(R)SDO
dis(SDO)
t(SDI-SDO)
SS
= 0 V; T
Parameter
SCL clock frequency
SCL time
clock HIGH time
clock LOW time
rise time
fall time
CE set-up time
CE hold time
CE recovery time
CE pulse width
set-up time
hold time
SDO read delay time
SDO disable time
transition time from
SDI to SDO
SPI-bus characteristics
amb
IL
=
and V

40

C to +85
IH
with an input voltage swing of V
Figure

C. All timing values are valid within the operating supply voltage and temperature range and
Conditions
for SCL signal
for SCL signal
measured after valid
subaddress is
received
set-up time for SDI
data
bus load = 50 pF
no load value; bus will
be held up by bus
capacitance; use RC
time constant with
application values
to avoid bus conflict
hold time for SDI data 25
28)
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 22 December 2010
SS
V
Min
-
345
90
200
-
-
40
40
30
-
10
-
-
0
DD
to V
= 1.6 V
DD
Max
-
-
-
100
100
-
-
-
0.99
-
-
190
70
-
2.9
.
V
Min
-
220
50
120
-
-
35
30
25
-
5
10
-
-
0
DD
= 2.4 V
Max
4.54
-
-
-
100
100
-
-
-
0.99
-
-
108
45
-
-
-
20
-
V
Min
-
175
45
95
30
25
-
3
8
-
0
DD
SPI Real time clock/calendar
= 3.3 V
Max
5.71
-
-
-
50
50
-
-
-
0.99
-
-
85
40
-
V
Min
-
125
40
70
-
-
25
15
15
-
2
5
-
-
0
PCF2123
© NXP B.V. 2010. All rights reserved.
DD
= 5.0 V
50
50
60
Max
8.0
-
-
-
-
-
-
0.99
-
-
27
-
43 of 61
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
s
ns
ns
ns
ns
ns