CDP68HC68T1EZ Intersil, CDP68HC68T1EZ Datasheet - Page 17

• Manufacturer Part Number: CDP68HC68T1EZ
• Description: IC RTC 32X8 NVSRAM CMOS 16DIP
• Manufacturer: Intersil
• Type: Clock/Calendar/NVSRAMr

Specifications of CDP68HC68T1EZ

• Memory Size: 32B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 3 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Timing Diagrams
System Diagrams
NOTE: Example of a system in which power is always on. Clock circuit driven by line input frequency.
MOSI
SCK
CE
MOSI
MISO
LINE
SCK
CE
AC
I
I
17
4
5
W/R
REGULATOR
5
W/R
BRIDGE
4
FIGURE 16. POWER-ON ALWAYS SYSTEM DIAGRAM
A6
FIGURE 14. WRITE-CYCLE TIMING WAVEFORMS
FIGURE 15. READ-CYCLE TIMING WAVEFORMS
A6
3
3
LINE
CDP68HC68T1
V
XTAL IN
BATT
A0
CDP68HC68T1
V
A0
DD
A
CPUR
MOSI
MISO
V
POR
SCK
A
SYS
INT
CE
C
C
V
DD
D7
D7
8
O
7
5
O
CDP68HC05C8B
IRQ
RESET
PORT
SCK
MOSI
MISO
D6
D6
O
O
V
DD
D1
N
DI
N
DO
2
DO
N
11
2
N
12
8
October 29, 2007
FN1547.8