參數(shù)資料
型號: SST89E516RD-40-I-PIE
廠商: SILICON STORAGE TECHNOLOGY INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDIP40
封裝: LEAD FREE, PLASTIC, MS-011AC, DIP-40
文件頁數(shù): 69/80頁
文件大?。?/td> 934K
代理商: SST89E516RD-40-I-PIE
Data Sheet
FlashFlex51 MCU
SST89E516RD2 / SST89E516RD
SST89V516RD2 / SST89V516RD
71
2005 Silicon Storage Technology, Inc.
S71273-01-000
3/05
Explanation of Symbols Each timing symbol has 5 characters. The first character is always a ‘T’ (stands for
time). The other characters, depending on their positions, stand for the name of a signal or the logical status of that
signal. The following is a list of all the characters and what they stand for.
For example:
TAVLL = Time from Address Valid to ALE Low
TLLPL = Time from ALE Low to PSEN# Low
TWHQX
Data Hold After WR#
3TCLCL - 27 (3V)
ns
5TCLCL - 20 (5V)
ns
TQVWH
Data Valid to WR# High
142
7TCLCL - 70 (3V)
ns
125
7TCLCL - 50 (5V)
ns
TQVWX
Data Valid to WR# High to Low
Transition
10
5
TCLCL - 20
ns
TRLAZ
RD# Low to Address Float
0
ns
TWHLH
RD# to WR# High to ALE High
5
55
TCLCL - 25 (3V)
TCLCL + 25 (3V)
ns
10
40
TCLCL - 15 (5V)
TCLCL + 15 (5V)
ns
T14-8.0 1273
1. Calculated values are for x1 Mode only
A: Address
Q: Output data
C: Clock
R: RD# signal
D: Input data
T: Time
H: Logic level HIGH
V: Valid
I:
Instruction (program memory contents)
W: WR# signal
L: Logic level LOW or ALE
X: No longer a valid logic level
P: PSEN#
Z: High Impedance (Float)
TABLE
14-8: AC ELECTRICAL CHARACTERISTICS (CONTINUED) (2 OF 2)
TA = -40°C TO +85°C, VDD = 2.7-3.6V@33MHZ, 4.5-5.5V@40MHZ, VSS = 0V
Symbol
Parameter
Oscillator
Units
33 MHz (x1 Mode)
16 MHz (x2 Mode)1
40 MHz (x1 Mode)
20 MHz (x2 Mode)1
Variable
Min
Max
Min
Max
Min
Max
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