Preliminary W27L010 128K × 8 ELECTRICALLY ERASABLE EPROM GENERAL DESCRIPTION The W27L010 is a high speed, low power consumption Electrically Erasable and Programmable Read Only Memory organized as 131072 × 8 bits. It requires only one supply in the range of 3.0V to 3.6V in normal read mode. The W27L010 provides an electrical chip erase function. FEATURES • • • • • High speed access time: 90/120 nS (max.) Read operating current: 10 mA (max.) Erase/Programming operating current: 30 mA (max.
Preliminary W27L010 FUNCTIONAL DESCRIPTION Read Mode Like conventional UVEPROMs, the W27L010 has two control functions, both of which produce data at the outputs. CE is for power control and chip select. OE controls the output buffer to gate data to the output pins. When addresses are stable, the address access time (TACC) is equal to the delay from CE to output (TCE), and data are available at the outputs TOE after the falling edge of OE, if TACC and TCE timings are met.
Preliminary W27L010 Standby Mode The standby mode significantly reduces VCC current. This mode is entered when CE high. In standby mode, all outputs are in a high impedance state, independent of OE and PGM. Two-line Output Control Since EPROMs are often used in large memory arrays, the W27L010 provides two control inputs for multiple memory connections. Two-line control provides for lowest possible memory power dissipation and ensures that data bus contention will not occur.
Preliminary W27L010 DC CHARACTERISTICS Absolute Maximum Ratings PARAMETER RATING UNIT 0 to +70 °C -65 to +125 °C -0.5 to VCC +0.5 V Voltage on VCC Pin with Respect to Ground -0.5 to +7 V Voltage on VPP Pin with Respect to Ground -0.5 to +14.5 V Voltage on A9 Pin with Respect to Ground -0.5 to +14.
Preliminary W27L010 CAPACITANCE (VCC = 3.0V to 3.6V , TA = 25° C, f = 1 MHz) PARAMETER SYMBOL CONDITIONS MAX. UNIT Input Capacitance CIN VIN = 0V 6 pF Output Capacitance COUT VOUT = 0V 12 pF AC CHARACTERISTICS AC Test Conditions PARAMETER CONDITIONS Input Pulse Levels 0.45V to 2.4V Input Rise and Fall Times 10 nS Input and Output Timing Reference Level 0.8V/2.0V Output Load CL = 100 pF, IOH/IOL = -0.1 mA/1.6 mA AC Test Load and Waveforms +1.3V (IN914) 3.
Preliminary W27L010 READ OPERATION DC CHARACTERISTICS (VCC = 3.0V to 3.6V, TA = 0 to 70° C) PARAMETER SYM. CONDITIONS LIMITS UNIT MIN. TYP. MAX. Input Load Current ILI VIN = 0V to VCC -5 - 5 µA Output Leakage Current ILO VOUT = 0V to VCC -10 - 10 µA Standby VCC Current (TTL input) ISB CE = VIH - - 200 µA Standby VCC Current (CMOS input) ISB1 CE = VCC ±0.
Preliminary W27L010 DC PROGRAMMING CHARACTERISTICS (VCC = 5.0V ±10%, TA = 25° C ±5° C) PARAMETER SYM. CONDITIONS LIMITS UNIT MIN. TYP. MAX. Input Load Current ILI VIN = VIL or VIH - - 10 µA VCC Program Current ICP CE = VIL, OE = VIH, - - 30 mA - - 30 mA PGM = VIL VPP Program Current IPP CE = VIL, OE = VIH, PGM = VIL Input Low Voltage VIL - -0.3 - 0.8 V Input High Voltage VIH - 2.4 - 5.5 V Output Low Voltage (Verify) VOL IOL = 2.1 mA - - 0.
Preliminary W27L010 TIMING WAVEFORMS AC Read Waveform VIH Address Address Valid VIL VIH CE VIL TCE VIH TDF OE VIL TOE TOH TACC Outputs High Z Valid Output High Z Erase Waveform Read Manufacturer Read Device SID SID A9 = 12.0V VIL Others = V IL Others = VIL VIH Address A0 = V IL A0=V IH Others=V IL TAS TAS Data DA Blank Check Read Verify Erase Verify Chip Erase A9 = 14.
Preliminary W27L010 Timing Waveforms, Continued Programming Waveform Program Verify Program Read Verify VIH Address Stable Address Address Stable Address Valid VIL TDFP TAS Data Data In Stable TDS DOUT TACC DOUT DOUT TAH TDH 12.0V VPP 5.
Preliminary W27L010 SMART PROGRAMMING ALGORITHM Start Address = First Location Vcc = 5V Vpp = 12V X=0 Program One 100 µS Pulse Increment X Yes X = 25? No Fail Verify One Byte Verify One Byte Pass Increment Address No Fail Pass Last Address? Yes Vcc = 3.3V Vpp = 3.
Preliminary W27L010 SMART ERASE ALGORITHM Start X=0 Vcc = 5V Vpp = 14V A9 = 14V; A0 = V IL Chip Erase 100 mS Pulse Address = First Location Increment X Vcc = 2.7V Vpp = 2.7V No Erase Verify Fail X = 20? Pass Yes Increment Address No Last Address? Yes Vcc = 3.3V Vpp = 3.
Preliminary W27L010 ORDERING INFORMATION PART NO. ACCESS TIME (nS) POWER SUPPLY CURRENT MAX. (mA) STANDBY VCC CURRENT MAX. (µA) PACKAGE W27L010-90 90 8 20 600 mil DIP W27L010-12 120 8 20 600 mil DIP W27L010S-90 90 8 20 450 mil SOP W27L010S-12 120 8 20 450 mil SOP W27L010P-90 90 8 20 32-pin PLCC W27L010P-12 120 8 20 32-pin PLCC Notes: 1. Winbond reserves the right to make changes to its products without prior notice. 2.
Preliminary W27L010 Package Dimensions, Continued 32-pin SO Wide Body Dimension in Inches Symbol A A1 A2 b c D E e HE L LE S y θ 17 32 e1 E HE θ L Detail F 1 16 b Min. Nom. Max. Dimension in mm Min. Nom. 0.118 0.004 Max. 3.00 0.10 0.101 0.106 0.111 2.57 2.69 0.014 0.016 0.020 0.36 0.41 0.51 0.006 0.008 0.012 0.15 0.20 0.31 0.805 0.817 20.45 20.75 0.440 0.445 0.450 11.18 11.30 11.43 0.044 0.050 2.82 0.056 1.12 1.27 1.42 0.546 0.556 0.556 13.87 14.
Preliminary W27L010 VERSION HISTORY VERSION DATE A1 Feb. 1999 PAGE DESCRIPTION Initial Issued Headquarters Winbond Electronics (H.K.) Ltd. No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5792647 http://www.winbond.com.tw/ Voice & Fax-on-demand: 886-2-7197006 Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064 Taipei Office 11F, No. 115, Sec. 3, Min-Sheng East Rd.
