DS12887A Datasheet, PDF (2/19 Pages) Maxim Integrated Products – Real-Time Clock

DS5000(T)
ORDERING INFORMATION
PART NUMBER
DS5000–8–16
DS5000–32–16
DS5000–8–16
DS5000T–32–16
RAM SIZE
8K bytes
32K bytes
8K bytes
32K bytes
MAX CRYSTAL SPEED
16 MHz
16 MHz
16 MHz
16 MHz
TIMEKEEPING?
No
No
Yes
Yes
Operating information is contained in the User’s Guide section of the Secure Microcontroller Data Book. This data
sheet provides ordering information, pinout, and electrical specification.
DS5000(T) BLOCK DIAGRAM Figure 1
DS5000(T)
V_CC
P0.0–0.7
ÎÎÎÎÎ _{P1.0–1.7}
ÎÎÎÎÎÎÎÎÎÎ _{P2.0–2.7}
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{P3.0–3.7}
RST
ALE
PSEN
EA
XTAL1
XTAL2
GND
V_CCO
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _DS5000FP
BYTE–WIDE
ADDRESS BUS
BYTE–WIDE
DATA BUS
CE1
R/W
8K OR 32K
SRAM
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _(DS5000T)
CE2
REAL TIME
CLOCK
+3V
021998 2/19