FS6370-01 American Microsystems, Inc., FS6370-01 Datasheet - Page 6

• Manufacturer Part Number: FS6370-01
• Description: EePROM Programmable 3-pll Clock Generator ic
• Manufacturer: American Microsystems, Inc.

FS6370-01
FS6370-01
FS6370-01
FS6370-01
EEPROM Programmable 3-PLL Clock Generator IC
EEPROM Programmable 3-PLL Clock Generator IC
EEPROM Programmable 3-PLL Clock Generator IC
EEPROM Programmable 3-PLL Clock Generator IC
For sequential read operations, the EEPROM has an in-
ternal address pointer that increments by one at the end
of each read operation. The pointer directs the EEPROM
to transmit the next sequentially addressed data byte,
allowing the entire memory contents to be read in one
operation.
6.2
The FS6370 control registers may be directly accessed
by simply using the FS6370 device address in the read or
write operations. The operation of the device will follow
the register values. The register map of the FS6370 is
identical to that of the EEPROM shown in Table 3.
The FS6370 supports the Random Read and Write pro-
cedures, as well as the Sequential Read and Write pro-
cedures described on Page 7.
The device address for the FS6370 is:
A6
1
Direct Register Programming
A5
0
A4
1
A3
1
A2
1
A1
0
A0
0
6
7.0
The FS6370 is compatible with the programmable regis-
ter-based FS6377 or a fixed-frequency ROM-based clock
generator. Attention should be paid to the board layout if
a migration path to either of these devices is desired.
7.1
If the design can support I
cost reduction from the EEPROM-based FS6370 to the
register-based FS6377 is possible.
Figure 5 shows the five pins that may not be compatible
between the various devices if programming of the
FS6370 or the FS6377 is desired.
Figure 5: FS6370 to FS6377
7.2
If the design has solidified on a particular EEPROM pro-
gramming pattern, the EEPROM pattern can be hard-
coded into a ROM-based device. For high-volume re-
quirements, a ROM-based device offers significant cost
savings over the FS6370. Contact an AMI Sales repre-
sentative for more detail.
OE/SDA
PD/SCL
(FS6370)
(FS6377)
(FS6370)
(FS6377)
OE
PD
(FS6370)
Cost Reduction Migration Path
Programming Migration Path
Non-Programming Migration Path
VSS
SEL_CD
XOUT
VDD
VSS
XIN
SDA
(FS6377)
1
2
3
4
5
6
7
8
2
C programming overhead, a
(FS6370)
VDD
16
15
14
13
12
11
10
9
CLK_A
VDD
CLK_B
CLK_C
VSS
CLK_D
SCL
(FS6377)
MODE
(FS6370)
ADDR
(FS6377)