ZLF645 MAXIM [Maxim Integrated Products], ZLF645 Datasheet - Page 21

• Manufacturer Part Number: ZLF645
• Description: Flash MCUs with Learning Amplification
• Manufacturer: MAXIM [Maxim Integrated Products]

19-4572; Rev 0; 4/09
Table 8
and SSOP packages by function.
Table 8. 28-Pin PDIP/SOIC/SSOP Functional Pin Identification
Pin No
19
20
21
23
4
5
6
7
24
25
26
27
28
1
2
3
18
11
12
13
14
15
17
16
8
22
10
9
lists the functions and signal directions of each pin within the 28-pin PDIP, SOIC,
P30
P31
P32
P33
P34
P35
P36
P37
V
Symbol
P00
P01
P02
P03
P04
P05
P06
P07
P20
P21
P22
P23
P24
P25
P26
P27
V
XTAL1
XTAL2
DD
SS
Port 0, bit 6
Port 0, bit 7
Port 2, bit 0
Port 2, bit 1
Port 2, bit 2
Port 2, bit 3
Port 2, bit 4
Port 2, bit 5
Port 2, bit 6
Port 2, bit 7
Port 3, bit 0; connect to VDD
if not used
Port 3, bit 1
Port 3, bit 2
Port 3, bit 3
Port 3, bit 4
Port 3, bit 5
Port 3, bit 6
Port 3, bit 7
Function
Port 0, bit 0
Port 0, bit 1
Port 0, bit 2
Port 0, bit 3
Port 0, bit 4
Port 0, bit 5
Power supply
Ground
Crystal oscillator
Crystal oscillator
ZLF645 Series Flash MCUs
Product Specification
Signal Direction
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Input
Input
Input
Input
Input/Output
Output
Output
Output
Input
Input
Input
Output
Pin Description
13