ZLF645 MAXIM [Maxim Integrated Products], ZLF645 Datasheet - Page 20

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

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