DS1390U-18+ Maxim Integrated Products, DS1390U-18+ Datasheet - Page 8

• Manufacturer Part Number: DS1390U-18+
• Description: IC RTC W/CHARGER 10-USOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Trickle-Chargerr

Specifications of DS1390U-18+

• Time Format: HH:MM:SS:hh (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.71 V ~ 1.89 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -

Low-Voltage SPI/3-Wire RTCs with
Trickle Charger
POWER-UP/POWER-DOWN CHARACTERISTICS
(T
Figure 5. Power-Up/Down Timing
Figure 6. Pushbutton Reset Timing
8
V
(V
V
V
V
V
A
CC
CC
PF(MIN)
CC
PF(MAX)
CC
RST
= -40°C to +85°C) (Figures 5, 6)
_____________________________________________________________________
Detect to Recognize Inputs
Fall Time; V
Rise Time; V
Rising)
OUTPUTS
PARAMETER
INPUTS
V
RST
V
PF(MAX)
PF(MIN)
PF(MAX)
V
PF(MIN)
CC
PB
DB
to
to
RECOGNIZED
VALID
SYMBOL
t F
t
RST
t
t
R
F
t
RST
V
PF
(Note 17)
CONDITIONS
DON'T CARE
HIGH IMPEDANCE
V
PF
MIN
300
0
t RST
t R
TYP
160
RECOGNIZED
t RPU
VALID
MAX
200
UNITS
ms
µs
µs